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- FORKARDT CATALOG
FORKARDT CATALOG
FORKARDT CATALOG
Forkardt specializes in innovative workholding solutions for industries such as medical, automotive, aerospace, and energy. Their products are designed for workpieces that standard chucks cannot optimally clamp due to unique shapes, sizes, or weights.
Forkardt has developed specialized chucks like the indexing chuck with hydraulic centrifugal force compensation and the equalizing counter-centrifugal ball chuck, suitable for specific applications such as fittings manufacturing and machining thin-walled parts.
The catalog includes a variety of chucks and accessories, such as sliding jaw power chucks and wedge style power chucks, each with features like quick change jaw systems and high gripping forces.
- Sliding Jaw Power Chucks: Suitable for medium and small batch production, offering quick change jaw systems and high gripping forces.
- SL 2/3 Jaw Combination Power Chuck: Ideal for holding round or square parts, featuring Ajust-Tru® for precision mounting.
- PB 2 Jaw Pull Back Power Chuck: Designed for heavy cuts on precision work, providing 100% more grip force than conventional chucks.
- BPC Thru-Hole OEM Replacement: Lightweight for higher speeds, suitable for CNC lathes.
- MO Stationary Hydraulic/Pneumatic: Can be operated by hydraulics or air, used on machining centers.
- BLN 2 Jaw Closed Center Power Chuck: For machining irregular shaped components, offering long stroke and lightweight design.
Detailed technical specifications are provided for each product, including dimensions, mounting options, and performance data, crucial for selecting the appropriate chuck for specific machining needs.
Forkardt's commitment to innovation and quality ensures their products meet diverse industry needs, providing solutions for complex workholding challenges and enhancing machining efficiency and precision.
The document details specifications and features of Forkardt QLC power chucks, including models like QLC-LM, QLC-KS, QLC-LS, and QLC-AG, designed for different machining applications with features like large bore sizes and long stroke capabilities.
Detailed dimensions and performance data for each chuck model are listed, including outer diameter, bore size, chuck mounting, jaw mounting, actuator stroke, and maximum actuating and gripping forces.
Key performance metrics such as maximum actuating force, maximum gripping force, and maximum RPM are provided for each chuck model, along with conversion factors for force and weight.
The QLC series chucks are maintenance-free, high precision, and suitable for both heavy-duty and fine finishing machining, featuring mechanical centrifugal force compensation and standardized jaw connections for easy tooling solutions.
The QLC-LM is ideal for series production and heavy-duty machining, while the QLC-AG is designed for shaft machining with high precision. The QLC-LS offers a long stroke for handling workpieces with diameter variations.
Part numbers for various components such as studs, collar nuts, and cam-lock studs are included, along with information on hard and soft jaw types for different chuck sizes.
Forkardt's QLC power chucks provide versatile and reliable solutions for a wide range of machining applications, enhancing precision, stability, and ease of use.
The document provides technical specifications and guidelines for Forkardt's power chucks, emphasizing the importance of using original spare parts for safety and optimal performance.
Part numbers, sizes, and descriptions for various components such as protective bushings, chuck actuators, master jaws, and jaw clamping devices are listed, along with specifications for different chuck types and sizes.
Instructions for ordering spare parts are provided, highlighting the need to specify the chuck's identification number, key number from the components diagram, and the quantity required. Regular re-greasing is necessary for maintaining optimal chuck performance.
The FNC three-jaw power chuck is highlighted for its quick-change jaw system, lightweight design, and high gripping forces. The BLN two-jaw wedge style power chuck is designed for machining irregularly shaped components.
Using only original Forkardt spare parts is advised, with part numbers provided for ordering replacement components. Regular maintenance, including re-greasing and using specific tools for chuck actuation, is recommended.
Detailed performance data is provided for various chuck sizes, including maximum actuating force, gripping force, speed, and weight, along with dimensions and mounting specifications for different chuck models.
Information on special mounting styles, spindle adapters, and jaw sets for different applications is included, along with part numbers for various components and accessories.
The document provides detailed specifications, performance data, and features of various power chucks and related components used in machining, including different models, their dimensions, capabilities, and applications.
Specifications for multiple models of power chucks are listed, including dimensions, spindle nose types, and mounting details, with parameters such as jaw travel, drawbar force, maximum RPM, and weight.
Performance metrics for each model are detailed, including maximum drawbar force, jaw travel, wedge travel, and maximum RPM, with conversion factors for force and weight.
The document highlights features of different chuck models, such as the ability to hold round or square parts, rugged construction, repeatability, and mechanical advantages, along with various jaw styles and materials.
Information on mounting plates for Super Life Power Chucks is provided, detailing compatibility with American Standard Style A1 and A2 spindles, with specific dimensions and part numbers for different spindle sizes.
Details on additional components like draw bar bolts, lock nuts, front plates, and wedge plugs are included, with part numbers and specifications.
Specifications for high-speed thru-hole and large bore 3 and 4 jaw power chucks are provided, emphasizing their high-speed capabilities, increased gripping force, and improved lubrication systems.
Stationary hydraulic/pneumatic power chucks are described, highlighting features like built-in cylinders for stability, M-code control for automation, and dust-proof structures for increased lifespan.
Specifications for replacement top jaws are included, detailing dimensions, serration pitch, and weight for various chuck sizes.
The document provides detailed specifications and features of various manual chucks and jaw systems offered by Forkardt, focusing on the F+ 3 Jaw Quick Change Wedge Block Chuck.
Specifications for hard and soft jaws are listed, including dimensions, serration pitch, and weight, along with chuck sizes available, ranging from 125mm to 630mm, and part numbers for different configurations.
The chucks are designed for high precision and repeatability, featuring a quick change jaw system, high grip force, and lightweight construction for high-speed operations. The wedge block design ensures backlash-free operation and minimizes chip accumulation.
The F+ manual three jaw wedge block chuck utilizes a wedge block drive system for the jaws, allowing for quick release and changeover. The synchronization of wedge blocks is maintained by a transmission ring, ensuring precise clamping movements.
Performance data for various chuck sizes is provided, including maximum grip force, actuating force, RPM, and weight. For example, the F+125 model has a max grip force of 37 kN and operates at 6,000 RPM.
These chucks are ideal for bar work, high grip force applications, and machining operations involving cylindrical, square, or irregularly shaped workpieces.
The document outlines the availability of replacement components and maintenance kits for the chucks, emphasizing their durability and ease of maintenance on the shop floor.
Forkardt's manual chucks are versatile, high-performance tools suitable for a wide range of machining applications, offering quick change capabilities and high precision.
The document provides detailed specifications and descriptions of various chucks and jaws used in machining, focusing on Forkardt's products, including soft jaws, hard jaws, independent chucks, and pneumatic chucks.
FWB soft jaws are designed for precision gripping of machined workpieces without damaging the surface, suitable for light cutting and maintaining precision if not removed from the base jaw.
FGB-FHB jaw sets are used for gripping unmachined or rough workpieces, with serrated surfaces for increased grip and ground in the chuck to enhance concentricity.
The PSA model features a quick-change jaw system with four independent jaws, allowing for high precision and versatility in gripping cylindrical and irregular shapes.
Forkardt offers pneumatic chucks for high precision and accuracy, suitable for conventional turning machines and grinding machines, hermetically sealed to prevent contamination.
Detailed tables with dimensions, weights, and performance specifications for each type of chuck and jaw are included, such as maximum RPM, clamping force, and torque, along with part numbers for ordering replacement jaws and components.
The chucks and jaws are designed for quick changeover, high precision, and long service life, made according to American Standard Tongue and Groove, with internal components made from case-hardened steel.
Forkardt offers a range of Ball-Lok chucks, including the Universal Ball Lok Chuck (UBL), the LS Long Stroke Chuck, the ECC Counter Centrifugal Chuck, and the Advanced Ball Lok Chuck (ABL), designed for various applications such as automotive components, gears, bearings, and irregularly shaped parts.
- Universal Ball Lok - UBL: Features positive pull-back, compensating or centralizing options, and jaw homing, ideal for automotive components and large diesel engine parts.
- Advanced Ball Lok - ABL: Suitable for tapered workpieces and bearing races, featuring a new post style arm and composite core.
- Equalizing Counter Centrifugal - ECC: Designed for thin-walled parts and high-speed applications, offering 12 points of equalized force.
- High Capacity - LS: Suitable for mass production and turning operations, featuring hermetically sealed design and long stroke.
Centralizing Ball-Lok chucks ensure concentricity and perpendicularity by using a one-piece actuator device, while compensating Ball Lok chucks use a two-piece actuator device to compensate for eccentricity. Positive pull-back action is enabled by a flat at the center of the spherical diameter, and the homing function allows jaws to rotate up to 5 degrees, compensating for non-perfectly round castings and forgings.
Chucks are available in various sizes, with detailed specifications for each size, including chuck diameter, mounting recess diameter, chuck height, and actuator stroke.
The ABL design incorporates a composite core to reduce weight and provide a dampening effect during operations. The Quick-Lok jaw mount allows for easy changeover in less than 60 seconds.
Forkardt provides various kits for replacement components, including standard and advanced arm kits, front bearing kits, and eccentric bearing kits.
Ball-Lok chucks are ideal for gripping rotors, gears, tapered workpieces, and extended workpieces, with practical examples including oil pump housing and crankshaft driveshaft.
The document provides detailed technical specifications and descriptions of various chuck models and components manufactured by Forkardt, including 3 Jaw Long Stroke Chucks, 6 Jaw Equalizing Counter-Centrifugal Chucks, Pin Arbor Chucks, Retractable Work Driving Chucks, and Diaphragm Chucks.
Available in different sizes with specifications such as chuck diameter, bore size, mounting recess, and maximum grip diameter, emphasizing the stroke and clamping capabilities.
Dimensions and specifications for ECC models are outlined, focusing on chuck diameter, mounting recess, actuator stroke, and jaw mounting platform, with recommended chucking ranges for different applications.
Designed for high accuracy and concentricity, with features like high gripping force and easy chucking pin changes, specifications for various models include maximum clamp force, weight, and grip range.
RWD chucks are designed for efficient shaft turning operations, offering features like high chucking pressure, improved concentricity, and minimal centrifugal force loss, with specifications including chuck diameter, actuator stroke, and maximum RPM.
Operate on a flexing action principle, ensuring consistent concentricity without sliding parts, with different designs like the Universal Gear and Pitch Line Diaphragm highlighted for applications in gear turning and grinding operations.
High precision, durability, and adaptability of the chucks for various industrial applications are emphasized, with tables including detailed measurements and specifications for each chuck model.
The document provides detailed specifications and descriptions of Forkardt collets and collet chucks, focusing on the Rim-Lok and Tork-Lok series, used in machining operations for holding parts securely during processing.
- Forkardt collets are manufactured with high precision, ensuring repeatability within 0.0005” TIR, guaranteeing consistent part holding during machining.
- Various models of Rim-Lok ID and OD Grip Collet Chucks are listed, including their grip ranges, dimensions, and maximum drawbar forces.
- OD Grip Collet Chucks are highlighted for their versatility in high-speed turning applications.
- Detailed tables provide information on spare components and collets for different models, including spindle adapters, drawbar adapters, and actuator posts, with specific part numbers and compatibility details.
- The Tork-Lok design is noted for its versatility and precision, featuring precision ground flats to prevent slippage and improve torque transmission.
- Arbors are available in drawbar mounted, air-operated cylinder, and manual fixture configurations, catering to various machining needs.
- Both long and short series designs are available, with features such as precision ground flats for improved accuracy, easy interchangeability, and provisions for air sensing.
- Concentricity is guaranteed within 0.0005” TIR, ensuring high precision in operations.
- Extensive tables provide measurements in both metric and imperial units, detailing clamping ranges, collet availability, and specific dimensions for each model.
- Information on stroke, bolt circle patterns, and mounting provisions is included to assist in selecting the appropriate components for specific applications.
The document provides detailed information on various types of chucks and workholding solutions offered by Forkardt, focusing on large diameter applications, including specifications, features, and benefits of different models, as well as application examples and technical data.
Ideal for machining large diameter parts, with key features including flat back and direct mount options, as well as American standard and solid jaws.
Designed for high-speed heavy machining, featuring a lightweight design and optional centrifugal force compensation.
Examples include a 24” Hi-LO PC Chuck for locomotive cylinder liners and a 1000mm 3-Jaw Sliding Jaw Power Chuck with weight-reducing scallops for housing.
Suitable for machining pipes, offering features like friction-free air intake, integrated seals for pressure monitoring, and rapid clamping capabilities.
Designed for machining tubing and casing couplings, featuring a mounted clamping ring that can be indexed 180 degrees and a 7-tube oil feed bundle.
Known for its longevity and reliability, offering features like a rugged jaw actuation mechanism, counter centrifugal compensation, and a robust sensor ring for clamp confirmation.
Adaptable for demanding cutting applications, featuring a patented wedge hook mechanism for high clamping forces and consistent repeatability.
Designed for workpieces with multiple machining axes, allowing for efficient production with minimal repositioning errors, with the HSR model offering hydraulic control and multiple indexing positions.
Forkardt offers a range of rotating cylinders with various designs and safety features like trapping to maintain pressure during power loss, with custom designs available to match specific application needs.
The document provides detailed specifications and features of various hydraulic and pneumatic cylinders, as well as steady rests used in machining applications, including technical data, model comparisons, and key benefits of each product.
Specifications for different models of hydraulic and pneumatic cylinders are listed, including dimensions, maximum pressure, piston area, operating force, and weight, along with details on oil leakage rates and maximum operating speeds.
Key features include simple inlet design, constant hydraulic or air flow, built-in trapping to maintain cylinder position during failures, and high RPM capabilities, with benefits such as reduced cycle times, improved roundness control, and enhanced productivity.
Various models, such as HWC, BLR, BC, and ARC series, are compared, detailing their specific dimensions, pressure capabilities, and application suitability, with tables including technical data for easy comparison.
Different models of steady rests, including SRF, SRFA, SRFB, and SRFAB, are described, highlighting their ideal applications, key features, and available grip ranges, emphasizing the precision and reliability of Forkardt's self-centering steady rests.
Optional features like coolant/air supply channels, swarf guards, and lubrication systems are mentioned, along with the importance of automatic centering, high centering accuracy, and robust design for optimal machine tool usage.
Forkardt's products are designed for high precision and reliability in machining applications, offering a range of features to enhance performance and productivity, with comprehensive technical data provided to assist in selecting the appropriate model for specific needs.
The document provides detailed specifications and features of various steady rest models and accessories offered by Forkardt, designed for different applications, including standard, heavy-duty, and precision tasks, and compatible with CNC lathes.
- Centering Range: Available with and without chip guards, with varying ranges for different models.
- Cylinder Bore: Sizes range from 30mm to 200mm, depending on the model.
- Operating Pressure: Minimum and maximum pressures vary, typically between 6 to 80 bar.
- Clamp Force: Maximum clamp force ranges from 100 daN to 8300 daN.
- Centering Accuracy: Ranges from 0.02mm to 0.08mm across different models.
- Repeatability: Typically between 0.005mm to 0.02mm.
- Peripheral Speed: Maximum speeds range from 200 min-1 to 950 min-1.
- Weight: Varies significantly, from 7 kg to 3000 kg, depending on the model and application.
- Safety valve and feedback provisions for maximum opening.
- 3-piece swarf guard set.
- Compressed air connection and centralized lubrication provisions.
- ForChange Quick Change System: Designed for fast changeover in small series production, featuring high precision and modular design.
- Tru-Change Precision Coupling Rings: Offers high torsional load capability with self-centering and zero backlash.
- Quick Change Jaw System MIR: Allows jaw changeover in 5 seconds with high rotational accuracy.
- Solid Carbide Inserts: Available in various styles and sizes, suitable for different duty levels and applications.
- Grip Force Meter SKM: Electronic units for static testing of chucks, featuring high precision and consistent operation.
The steady rests are suitable for a range of applications, including standard CNC operations, heavy-duty tasks like turbine and marine crank shafts, and precision tasks requiring high centering accuracy.
The device operates with a mains adapter of 230 VAC / 50 Hz, with an operating time of 10 hours from a full charge and requiring 8 hours to recharge when switched off. Casing dimensions are 155 x 75 x 39 mm, meeting IP 65 insulation standards, with measuring head dimensions of 55 mm Ø and 104 mm Ø, and chucking diameters ranging from 63 to 293 mm Ø and 114 to 544 mm Ø. Weight is approximately 1.3 kg and 2.9 kg for different configurations.
The device can operate with 2, 3, or 6 jaws, recording maximum overload and gripping force, ranging from 0-200 kN (SKM 1200) to 0-500 kN (SKM 1500). The unit scale can be changed between t, kN, and klbs, with the maximum value recorded stored and displayed, even when the display cannot be viewed during chucking. The memory can be cleared manually or will clear automatically with the next reading.
The device retains current settings when switched off and can start measuring immediately upon being switched back on. The zero-point can be adjusted when the meter is not clamped or loaded, with key functions including changing the number of jaws, clearing maximum values, and changing the unit scale.
Extension pieces can be mounted to the head using tension and compression bolts, accommodating chucking diameters of 63 to 293 mm (SKM 1200) and 114 to 544 mm (SKM 1500), with various tension and compression bolts available with specific part numbers.
Forkardt offers paid repair services for all brands they produce, incorporating any new improvements into repairs, with estimates typically provided within a week and a non-refundable assessment fee may apply. Paid services include installation, troubleshooting, and on-site training for maintenance and repair, improving product performance and safety.
Forkardt products are warranted for one year from delivery against defects in material and workmanship, excluding damage from misuse, alterations, or improper maintenance.
Forkardt has locations in the USA, Germany, India, France, and China, with contact details provided for each location.
Catalog excerpts
We Solve Your Gripping Problems Extraordinary fields of application need extraordinary solutions. Owing to their shape, size, weight or other properties, many work pieces cannot be optimally clamped and machined with standard chucks. Our engineers are constantly on the lookout for these challenges. Many of our applied solutions become standard products. One example would be the development of the indexing chuck, which has hydraulic centrifugal force compensation that makes it ideal for fittings manufacturers. Another is the equalizing counter-centrifugal ball chuck, which is ideal for machining...
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TABLE OF CONTENTS Sliding Jaw Power Chucks Wedge Style Power Chucks 7 3 Jaw Low Maintenance QLC-LM 10 3 Jaw QLC/QLK Model 11 3 Jaw Closed Center QLC-KT 13 3 Jaw King Size Bore QLC-KS 15 2 & 3 Jaw Long Stroke QLC-LS 17 3 Jaw Shaft Clamping QLC-AG 19 Spindle Adapters 21 HB Style Hard Jaws 22 WBL/WBS Style Soft Blank Jaws 24 QLC Replacement Components 25 Quick Change Power Chuck 26 Spindle Adapters 29 FSTB Style Hard Solid Jaws 30 FGB/FHB Style Jaw Sets 31 FWB Style Soft Jaws 32 FNC Replacement Components 33 2 Jaw Wedge Style Power Chuck 34 Superlife Ajust-Tru® Power Chuck 36 2/3 Jaw Chuck Replacement...
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Sliding Jaw Power Chucks
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Sliding Jaw Power Chucks FNC Quick Change Power Chuck Ideal for • Medium and small batch production • Applications requiring frequent retooling Key Features • Quick change jaw system • Light weight design • High gripping forces Available in sizes 175 to 630mm SL 2/3 Jaw Combination Power Chuck Ideal for • Holding round or square parts with same chuck • Applications where roundness is a concern Key Feautures • Ajust-Tru® for precision mounting • Easily repaired in-house • 4:1 mechanical advantage Available in multiple jaw styles in sizes 250 to 630mm PB 2 Jaw Pull Back Power Chuck Ideal for •...
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Sliding Jaw Power Chucks BLN 2 Jaw Closed Center Power Chuck Ideal for • Machining of irregular shaped components such as valves or fittings • Ball-shaped parts requiring full envelope of jaws Key Features • Lightweight for higher speeds • No thru-hole • Long stroke Available in sizes 200 to 400 mm BPC Thru-Hole OEM Replacement Ideal for • Conventional machining on CNC lathes Key Features • Lightweight for higher speeds • Direct replacement for OEM power chucks • Available with standard or big bore Available in 2, 3 and 4 jaw design in sizes 110 to 450 mm. MO Stationary Hydraulic/Pneumatic Ideal...
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Wedge Style Power Chuck The QLC line of Wedge Hook Style Power Chucks provides a combination of innovative design, high quality materials, and advanced manufacturing techniques. All Forkardt products are developed and produced in accordance with the requirements of ISO 9001-2000. The QLK offers all of the features of the QLC, without the centrifugal force compensation. QLC power chucks utilize a wedge hook mechanism. Each of the chuck models available in the QLC power chuck line feature centrifugal force compensation, allowing for higher speeds, higher gripping forces, improved accuracy, reliability,...
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Wedge Style Power Chuck Patented Wedge Hook Design- backlash free for maximum clamp forces Patented Multiple Profile Base Jaw- provides greater stability and precision Patented Integrated Force Feed Circular Lubrication- minimal loss of lubricating grease Centrifugal Force Compensation (QLC model) - allows for higher speeds Nitrided Chuck Body- increases service life King Size Bore (KS Model)- allows gripping of larger diameter parts C Integrated lubricant reservoir with improved forced circulation Patented multiple profile base jaw Closed Center (KT Model) - prevents chips from entering the...
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Wedge Style Power Chuck Application Examples With the options of closed center, large thru-hole, long stroke, counter centrifugal, shaft balancing, and low maintenance the QLC line of power chucks can be used for almost any application. Below are some examples of applications where the QLC was used, with the addition of engineered top tooling and fixturing. QLC-KT with Rotor In this example, top jaws and fixtures were designed to hold the OD of the rotor. The closed center KT chuck was used so that chips did not enter the chuck as the ID of the rotor was machined. In this example, a QLC with...
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The Forkardt QLC wedge style power chuck provides a high precision, universal application chuck that is suited for practically all turning applications. The lightweight design allows for faster speeds, which combined with the optional quick change jaw system makes the QLC an excellent choice for decreasing machine cycle times while saving energy and spindle wear. The QLC features a higher clamping force and higher precision than a standard wedge style power chuck, making it especially suited for heavy duty machining of disk and bar components as well as high precision finish machining of easily...
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Outer Diameter Thru Bore Chuck Mounting Mounting Recess Actuator Diameter Mounting Bolts Draw Bushing Thread Chuck Height Base Jaw Over Face Actuator Thread Length Actuator Stroke Actuator Position Jaw Stroke Position Of Master Jaw Jaw Mounting Bolts Distance Jaw Mounting Bolts Distance Jaw Mounting Bolts Minimum Distance Minimum Distance Dist. T-Nut to Serration Slot Width Imperial Slot Width Metric Performance Data Max. Actuating Force 1 kN = 224.81 lbs. (Force) 1 kg = 2.20 lbs. (Weight) Dimensions in mm unless otherwise specified Part Numbers Sliding Jaw Power Chuck
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3 Jaw Closed Center QLC-KT The Forkardt QLC-KT three jaw closed center power chuck satisfies the need for ultimate performance. This design combines the patented QLC jaw guides with the rugged and precise elements of the previous KT design to provide a chuck designed for heavy duty machining.
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3 Jaw Closed Center QLC-KT 3 Jaw QLC-KT Outer Diameter Chuck Mounting Mounting Recess Mounting Bolts Thread Mounting Thread Mounting Chuck Width Thread Length Thread Length Of Actuator Actuator Stroke Actuator Position Mounting Bolts Distance Jaw Mounting Bolt Slot Width Distance From 1st Serration T-Slot Width Performance Data Max. Actuating Force Max. RPM Max. Gripping Force 1 kN = 224.81 lbs. (Force) 1 kg = 2.20 lbs. (Weight) Dimensions in mm unless otherwise specified Jaw Mount Chuck Mount Tongue & Groove Sliding Jaw Power Chuc
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