Overview of Fast Clamps

Fast Clamps are versatile clamping devices used in machining and assembly, suitable for a variety of materials including non-ferrous metals, cast iron, and steel. They provide strong clamping forces with adjustable heights to accommodate different workpieces.

Types and Specifications

• Pull Clamps (Heavy Duty): Clamping range up to 2.5mm, forces up to 8,000N.
• Swing Clamps (Heavy Duty): Adjustable height, forces up to 6,000N.
• Side Clamps (Standard): Clamping range up to 2mm, force up to 2,500N.
• Pull Clamps (Standard): Clamping range up to 1.8mm, force up to 1,200N.
• Swing and Push Clamps (Standard): Clamping range up to 2.5mm, force up to 4,000N.

Materials and Construction

Key components are made from high-grade steels (S45C, SCM440, SCM435) with quenching and tempering treatments and black oxide finishes for durability and corrosion resistance. Clamping arms, spindles, and handles are designed for strength and longevity.

Clamping Mechanisms and Operation

Screw clamping mechanisms enable longer strokes and higher forces. Flange nuts and cam handles facilitate easy arm positioning and clamping. Adjustable clamping height compensates for casting variations or sensitive workpieces. Use of torque wrenches is recommended for controlled force application.

Performance and Safety Parameters

• Maximum clamping forces range from 1,200N to 8,000N depending on clamp type.
• Specified allowable screw torque and operating loads prevent damage.
• Performance curves relate clamping force to screw torque for different models.
• Avoid power tools like impact wrenches on flange nuts to prevent damage.

Additional Components and Accessories

• Work locators, risers, V blocks, centering pins for precise positioning and support.
• Adjustable stops and work supports enhance fixture flexibility and repeatability.
• Remote control units enable efficient remote clamp operation.
• Contact bolts and clamp screws provide secure fastening and fine adjustment.

Side Clamps and Base Plates

Side clamps offer holddown force suitable for horizontal and vertical use. Combined with flat or round base plates, they improve mounting surface and positioning accuracy along machine table grooves. Components are made from hardened alloy steel with high-strength mounting screws.

Installation and Adjustment

Cam and adjustable handles allow easy clamping/unclamping. Locking positions are adjustable via support tip height and handle orientation. Brass pads and hex socket setscrews ensure secure installation and prevent damage.

Good Practices and Recommendations

• Use torque wrenches to precisely control clamping force.
• Avoid power tools on flange nuts to prevent damage.
• Adjust clamps to recommended locking positions before use.
• Observe maximum allowable forces on workpieces and fixtures to avoid deformation.
• Use appropriate base plates and sliding blocks for accurate positioning in machine grooves.

Summary

This section provides comprehensive technical data, part numbers, and operational guidelines for Fast Clamps and related fixturing components, emphasizing precision, durability, adjustable height, and secure holding.

Clamping and Locating Components

Push Clamps and V-Blocks

• Part numbers and sizes for fixed and movable V-block push clamps with dimensions and weights.
• Clamping forces range from 3,600 N to 24,000 N depending on model.
• Allowable screw torque values ensure safe operation.
• Surface finishes include serrated, ground, and precision ground to optimize grip and protect workpieces.

Hook Clamps and Holders

• Cataloged hook clamps with springs and holders provide secure holding with spring tension.

Locating and Rest Pads

• Rest pads made from S45C, SUM22L, SUM43 steels with heat treatment and black oxide finish for durability.
• Precise dimensions and tolerances ensure accurate positioning and workpiece protection.
• Swivel rest pads with 6° tilt accommodate angled surfaces.
• Applications include protecting soft or precision-ground workpieces and ensuring stable positioning.

Grippers and Screw Grippers

• Various gripper types: round, square, edge, angle, tipped socket screw grippers.
• Materials include quenched and tempered steels (SKH51, SCM440) with black oxide finish and carbide tips for wear resistance.
• Dimensions cover diameter, thread size, and effective thread length for screws M3 to M20.
• Load capacities and allowable screw torques specified for safe clamping.
• Serration patterns (diamond, straight) enhance grip.

Material and Finish Specifications

• Common materials: S45C, SUM22L, SUM43, SCM440, SKH51 steels.
• Heat treatments range from Rc33 to Rc62 hardness.
• Black oxide finish standard for corrosion resistance and reduced friction.
• Carbide tips used on grippers for durability.

Performance Parameters and Usage Recommendations

• Clamping forces and allowable screw torques critical for safe use.
• Surface finish choice balances grip strength and workpiece protection.
• Locating blocks with flat feet allow accuracy compensation by regrinding.
• Swivel rest pads maintain stable contact on angled surfaces.

Summary of Key Dimensions and Part Numbering

• Part numbers organized by size/type.
• Dimensions (A to M) with tolerances ensure interchangeability and precision.
• Weights listed to assist selection and handling.

Conclusion

This section serves as a detailed catalog and technical reference for mechanical clamping and locating components, emphasizing material quality, dimensional accuracy, surface finish options, and performance limits to optimize workholding.

Swivel Gripper Screws and Pad Grippers

Product Types and Materials

• Swivel gripper screws (Buh, Stbu, Bbu types) designed for precise positioning and positive holding; also usable as screw jacks.
• Materials include steels (SKH51, SCM440, SNCM220), stainless steel (SUS440), and polyacetal plastic.
• Heat treatments: quenched and tempered, carburized-hardened; hardness Rc32 to Rc62.
• Tip and ball variants: plain or serrated steel, plastic tips and balls (white polyacetal).

Specifications and Dimensions

• Thread sizes from M4×0.7 to M24×3.
• Key dimensions: diameters, lengths (A-E), wrench flats (F).
• Swivel angle fixed at 10°.
• Weights range from ~6g to over 100g.
• Load capacities from 3,000 N to 85,600 N depending on model and material.

Installation Procedures

• Tip installation involves pushing ball out, securing tip with hex socket-head cap screw, then reinserting assembly.
• Applicable to all variants (steel/plastic, plain/serrated).

Application Recommendations

• Ideal for workpiece positioning and positive holding in machining and assembly.
• Can serve as screw jacks for load support.
• Tip type and material selection depends on grip and wear resistance needs.

Product Codes and Cataloging

• Unique codes identify size, material, tip type, and finish.
• Weight and load capacity data accompany codes for selection ease.

Summary of Key Parameters

Important Notes

• Black oxide finish enhances corrosion resistance and surface hardness.
• Heat treatment critical for mechanical strength and wear resistance.
• Plastic components (white polyacetal) chosen for low friction and wear.
• Proper installation with hex socket-head cap screw essential for secure assembly.

Conclusion

This document comprehensively details swivel gripper screws and pad grippers, focusing on material properties, mechanical specs, installation, and application suitability, serving as a reference for precise and reliable workpiece positioning and holding in industrial environments.