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C & E-SERIES SCREW JACKS
C & E-SERIES SCREW JACKS
Power Jacks is a UK-based leading manufacturer specializing in actuation, lifting, and positioning solutions across sectors such as Industrial Automation, Energy, Defence, Medical, Transport, and Civil Engineering. It is the largest screw jack manufacturing facility in the UK, adhering to standards like BS EN ISO 9001, OHSAS 18001, and ISO 14001, with a global presence in 26 countries and products supplied to over 80 countries.
The document provides a guide to the C & E-Series Screw Jacks, detailing design, specifications, and applications. It includes a comparison of screw jack sizes and systems, and guidance on selecting the appropriate screw jack.
Features, applications, and performance of C-Series Machine Screw Jacks are outlined, with capacities from 2.5kN to 100kN. Additional components include anti-backlash, anti-rotation, safety nuts, and motor adaptors.
The E-Series offers capacities from 5kN to 2000kN, including stainless steel and ball screw variants, with features and performance metrics highlighted.
Power Jacks provides accessories like end fittings, bellows boots, and limit switches, and discusses custom design processes for special applications.
Includes critical engineering data such as screw speed charts, torque ratings, load ratings, and performance calculations, along with 2D and 3D CAD models for support.
Various lead screw options are available, including standard pitch, double pitch, stainless steel, and larger diameter screws. Special designs are available for non-standard requirements.
Key components include the screw jack, bevel gearboxes, flexible couplings, drive shafts, shaft supports, and electric motors, tailored to meet specific system requirements.
The screw jack product code specifies gearbox type, screw type, configuration, capacity, stroke, end type, material, mounting, and additional features like anti-backlash and safety nuts.
A five-step guide assists in selecting the appropriate screw jack, focusing on power and torque requirements.
Considerations for lifting screw column strength, critical speed, and deflection are crucial for safe operation, with recommended safety factors.
Power Jacks provides comprehensive solutions for screw jack systems, with detailed specifications and customization options.
Tolerable deflection should be less than 0.5 mm per meter, with a formula provided for calculation.
Includes start-up and dynamic torque values, side load guidance, radial force limits, and self-locking features.
Total input power is calculated based on the number of screw jacks, arrangement efficiency, and gearbox efficiency.
Details performance metrics and typical applications in industries like metal processing, automotive, and aerospace.
Example of a special application includes a 'magic mirror' effect for a car reveal system using a four screw jack system.
Details for various models of C-Series Machine Screw Jacks, including capacities, lead screw dimensions, gear ratios, and torque requirements.
Includes maximum input power, start-up torque, maximum through torque, static and dynamic efficiency, and lead screw restraining torque.
All models feature a stop nut for safety, with dimensions provided in millimeters.
Available accessories include rotary limit switch adaptors, anti-backlash end fittings, and more.
Details on column strength and critical screw speed are provided for each model.
Outlines features of rotary limit switches and machine screw jacks, including contact types, enclosure ratings, and mounting options.
The E-Series machine screw jacks are available in various models with capacities from 5kN to 2000kN, featuring precision worm gear sets and multiple mounting options.
Provides detailed performance metrics for different models, including gear ratios and efficiency values.
The E-Series machine screw jacks are used in sectors like steel, automotive, and aerospace, suitable for intermittent duty cycles.
Screw jacks can be connected in systems for synchronized operation, with popular configurations including 'H' and 'U' systems.
Highlights integrated lubrication systems and corrosion protection options.
Details for various models of machine screw jacks from Power Jacks, specifically the E-Series, with capacities ranging from 200kN to 1500kN.
Includes installation recommendations and maintenance requirements.
Details maximum input speed, maximum through torque, and column strength for different models.
Includes notes on dimensions, material specifications, and the availability of custom options.
Outlines various models of screw jacks, including capacities and specifications for stainless steel and plated worm shafts.
Describes the use of safety nuts in screw jacks for load transfer and sustaining load in case of failure.
All safety nuts comply with BS EN 1570 standards.
Recommends using translating screw jacks with safety nuts for critical applications.
Provides detailed specifications for various models, including dimensions and efficiency values.
Highlights the high efficiency of ball screw jacks and typical applications in various industries.
Offers customization options and emphasizes the importance of considering mechanical or electrical linking for multiple screw jacks.
Provides detailed specifications and guidelines for various models of metric ballscrew jacks, focusing on load capacities and configurations.
Outlines specifications for ballscrew jacks with varying diameters and leads, detailing permissible compressive loads.
Provides load capacity charts for different ballscrew diameters and configurations.
Highlights high efficiency and reduced axial backlash in E-Series ballscrew jacks.
Discusses various accessories and customization options for specific application requirements.
Introduces E-Series roller screw jacks for high load and high duty applications.
Recommends roller screw jacks for high load applications with high duty cycles.
Provides comprehensive technical details and options for selecting and customizing metric ballscrew jacks and roller screw jacks.
Provides detailed specifications and guidelines for Power Jacks' E-Series accessories, focusing on machine screw jacks and ball screw jacks with bellows boots.
Outlines dimensions and configurations for different models of machine screw jacks and ball screw jacks.
Includes recommendations for internal boot guides and fixing unattached collars.
Bellows boots are made from PVC-coated nylon, with options for other materials available.
Details trunnion mounts for various capacities, with options for customized mounts.
Standard adapters are available for metric machine screw and ball screw jacks.
Describes sensor kits with inductive proximity sensors.
Includes notes on dimensions, material specifications, and the availability of custom options.
Provides detailed technical specifications and design options for screw jacks and related accessories, focusing on customization and application-specific solutions.
Lists various specifications for upright and inverted machine screw jacks.
Electro-mechanical limit switches can be fitted to screw jacks, with options for rotary limit switches.
Power Jacks offers fully customizable screw jack designs to meet specific customer requirements.
Designed for underwater applications, with depth ratings up to 3000m and capacities up to 2000 kN.
Includes engineering guides for screw jack performance.
Examples of special screw jack designs are provided.
Provides detailed specifications for various types of screw jacks.
Explains the operation of rotating and translating screw jacks.
Recommendations for minimizing side loads and ensuring proper guidance.
Key torque values are provided for different capacities and screw diameters.
Backlash ratings for machine and ball screw jacks are discussed.
Maximum side load ratings are provided.
Emphasizes the importance of proper maintenance and lubrication.
Serves as a comprehensive guide for selecting, operating, and maintaining screw jacks.
Minimizes axial backlash between the lead screw and nut assembly.
Column strength is determined by the screw's length-to-diameter ratio.
Screw jacks have an intermittent duty cycle at rated load.
Heat generation in screw jacks is influenced by duty cycle and other factors.
Screw jacks can be designed to pivot loads using double clevis or clevis-trunnion mounting.
Proper alignment and strength of the supporting structure are crucial.
Screw jacks can be linked mechanically or electronically for synchronized operation.
Emergency stop devices should be used cautiously.
Formulas are provided for calculating linear speed, input torque, and input power.
Provides formulae for calculating the moment of inertia and acceleration or braking time for screw jacks.
Outlines the formulae for calculating the moment of inertia for solid and hollow cylinders.
Includes calculations for acceleration or braking time.
Defines several symbols and their corresponding units.
Power Jacks Limited is based in Aberdeenshire, Scotland, serving various sectors.
Catalog excerpts
C & E-SERIES SCREW JACKS
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Screw Jack Design Guide Company Overview Best engineered solution for precision linear actuation, power transmission & jacking systems.
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C & E-Series Screw Jacks www.powerjacks.com Company Overview OUR EXPERTISE HAS BEEN BUILT ON A HISTORY OF MORE THAN 100 YEARS OF ENGINEERING, CRAFTSMANSHIP, VISIONARY DESIGN, QUALITY MANUFACTURE AND CUSTOMER CARE. Power Jacks is a manufacturing/engineering company specialising in the design and manufacture of actuation, lifting and positioning solutions for applications in Industrial Automation, Energy, Defence, Medical, Transport, and the Civil Engineering sectors. Headquartered near Aberdeen in the UK, the company is the UK’s largest screw jack manufacturing facility, that uses the latest engineering...
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• 2D CAD Drawings • 3D CAD Models • Dimensioned Data Sheet
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Compare Screw Jack Sizes C-Series - Translating Screw E-Series - Translating Screw E-Series - Rotating Screw
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Compare Screw Jack Sizes C-Series - Rotating Screw
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Translating Screw Jack Building System C-Series - Machine Screw Jack E-Series Machines Screw Jack E-Series Stainless Steel Screw Jack E-Series Ball Screw Jack Lead Screw Options: 1. Standard 1 x Pitch 2. 2 x Pitch 3. Anti-Rotation (Keyed) 4. Stainless Steel 5. Left Hand Thread Bellows Boot Electric Motor with or without: • Brake • Encoder Motor Adaptor • Forced Ventilation Rotary Limit Switch Adaptor Drive Shaft Stop Nut Rotary Limit Switch Secondary Guide Brake Hand Wheel * For use with Anti-Backlash and some safety nut models only. Limit Switches Trunnion Feet Double Clevis mount Special Screw...
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Rotating Screw Jack Building C-Series - Machine Screw Jack E-Series Machines Screw Jack E-Series Stainless Steel Screw Jack E-Series Ball Screw Jack Lead Screw Options: 1. Standard 1 x Pitch 2. 2 x Pitch 3. No Pilot End 4. Stainless Steel 5. Left Hand Thread 6. Larger Diameter Screw Motor Adaptor Electric Motor with or without: • Brake • Encoder • Forced Ventilation Rotary Limit Switch Adaptor Drive Shaft Trunnion Feet Rotary Limit Switch Trunnion Brake Hand Wheel Special Screw Jacks Design Available when you need more than the standard solution. www.powerjacks.
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Jacking Systems Screw jacks can be connected together in systems so that multiple units can be operated and controlled together. These jacking system arrangements or configurations can be built in many formats with the use of bevel gearboxes, motors, reduction gearboxes, drive shafts, couplings, plummer blocks and motion control devices. Four of the most popular system configurations are the ‘H’, ‘U’, ‘T’ and ‘I’ configured jacking systems. Note that multiple screw jacks can be linked together mechanically or electrically. The latter is useful if there is no space for linking drive shafts. Typical...
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Jacking Systems Jacking systems are not limited to the number of screw jacks shown here. They are regularly supplied to clients with 2, 4, 6, 8 jack systems. Larger systems can extend up to 16 or higher. With the use of electronic synchronisation/control multiple systems or screw jacks can be used in unison. Extending the possible number of screw jacks used in unison in excess of 100. To facilitate electronic control of screw jacks, feedback devices (eg encoder, limit switch) are available, mounted on the screw jack or its motor or another system component.
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Screw Jack Product Code 1 GROUP-1 - Screw Jack Gearbox Definition 2 GROUP-2 - Screw Jack Features
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Screw Jack Product Code 1 GROUP-1 - Screw Jack Gearbox Definition Machine Screw Rotating Screw Ball Screw Translating Screw Upright - All Stainless Steel Screw Jack #16 Option 1 Ratio with gear rotation monitor #12 Inverted - All Stainless Steel Screw Jack Option 2 Ratio with gear rotation monitor #12 13 - Lifting Screw Lead 10 - Gearbox Feature - 1 Option 1 Lead - Right Hand (Standard) Option 2 Lead - Right Hand Anti-Rotation (Keyed) Option 1 Lead - Left Hand #5 Secondary Guide Option 2 Lead - Left Hand #5 Anti-Rotation (keyed) with Secondary Guide Trunnion Nut with Feet 14 - Worm Shaft Type...
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Screw Jack Product Code GROUP-2 - Screw Jack Features 24 - Lifting Screw Material #16 Standard with Low Friction Coating (Molycote) Stainless Steel 21 - Character Space 22 - End Type Standard with Protective Coating (Armaloy) Cover Pipe & No Bellows Boot #15 Fork End (standard available up to 200KN) Cover Pipe & Fabric Bellows Boot #9 Fabric Bellows Boot x 2 - Rotating Screw Cover Pipe & Rubber Bellows Boot #9 Rubber Bellows Boot x 2 - Rotating Screw No Cover Pipe & No Bellows Boot #9 Cover Pipe & PU Waterproof Bellows Boot #9 PU Waterproof Bellows Boot x2 - Rotating Screw 25 - Lifting Screw...
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Screw Jack Product Code Standard Paint & Food Grade Lubricant & Standard Seals Standard Paint, Nuclear Grade Lubricant & Seals Standard Paint, High Temperature Lubricant & Seals Standard Paint, Low Temperature Lubricant & Seals Standard Paint, Biodegradable Lubricant & Standard Seals No Paint, Standard Lubricant & Seals No Paint & Food Grade Lubricant & Standard Seals No Paint, Nuclear Grade Lubricant & Seals No Paint, High Temperature Lubricant & Seals No Paint, Low Temperature Lubricant & Seals No Paint, Biodegradable Lubricant & Standard Seals Standard Primer, Lubricant & Seals Standard Primer...
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Selecting a Screw Jack Five Step Guide to Initial Screw Jack Selection The following selection procedure is applicable for Machine Screw and Ball Screw Jacks. Calculate Power and Torque Requirements Select a screw jack from the tables with adequate load carrying capacity and note the screw jack static and dynamic efficiency for required input speed. Step 1 - Screw Jack Input Speed Linear Speed (mm/min) x Gear Ratio Pitch (mm) x N° of Starts on Lifting Screw Input speed should not exceed 1800 rpm. Number of starts on lifting screw is usually 1, unless otherwise stated. Note: Screw Lead = Pitch...
Open the catalog to page 16All Power Jacks catalogs and technical brochures
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