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PROGRAM SUMMARY Hinge clamps and clamps
PROGRAM SUMMARY Hinge clamps and clamps
Program Overview
This document provides a detailed summary of various hydraulic hinge clamps and related clamp types, outlining their specifications, features, and options. The clamps are categorized into Mini Hinge Clamps, Hinge Clamps, Compact Clamps, Flat Lever Clamps, Position Flexible Clamps, Flat Clamps, Block Clamps, and Slide Pivot Clamps.
Types and Specifications
- Mini Hinge Clamps: Cartridge type, max pressure 250 bar, double acting, compact with partially recessible body.
- Hinge Clamps: Cartridge type, max pressure 70 bar, double acting, compact design.
- Compact Clamps: Cartridge and flange types, max pressure 200 bar, double acting, interchangeable contact bolts.
- Flat Lever Clamps: Cartridge and flange types, max pressure 250 bar, double acting, built-in flow control valve, multiple sizes and clamping directions.
- Position Flexible Clamps: Flange type, max pressure 70 bar, double acting, adjustable clamping unit and workpiece support, optional position monitoring.
- Flat Clamps: Cartridge and flange types, max pressure 250 bar, double acting, flat clamping lever swivels into small recesses.
- Block Clamps: Built-in and block types, max pressure 120-500 bar, double acting, high protection against contaminants, retractable levers, self-locking options.
- Slide Pivot Clamps: Compact type, max pressure up to 500 bar, double acting, adjustable clamping direction 0-360°, side load compensation.
Hydraulic Connection and Functioning
Hydraulic connections include drilled channels and pipe threads, with mounting accessories available for adaptation. Most clamps are double acting; some offer single acting options.
Special Features
- Compact design for space-saving installation.
- Interchangeable contact bolts for flexibility.
- Clamping without side loads in many models, reducing wear and improving reliability.
- Built-in flow control valves for precise clamping control.
- Adjustable clamping directions and flexible positioning.
- High protection against swarf and welding spatter.
- Retractable clamping levers and self-locking versions available.
Position Monitoring Options
Optional inductive and pneumatic sensors are available for monitoring clamping/unclamping positions, extended piston rod, and clamping lever positions, enhancing safety and process control.
Performance Parameters
| Clamp Type | Max Clamping Force | Clamping Range | Max Operating Pressure | Min Operating Pressure | Max Operating Temperature | Max Flow Rate (Clamping) |
|---|---|---|---|---|---|---|
| Mini Hinge Clamps | 2.2 kN | ±1.5 mm | 250 bar | 10 bar | 150 °C | 15 cm³/s |
| Hinge Clamps | 2.3 kN | ±1.5 mm | 70 bar | 10 bar | 150 °C | 15 cm³/s |
| Compact Clamps | 1.3 kN to 18 kN | 5.0 mm to 6.0 mm | 200 bar | 10-20 bar | 80 °C | 5 to 40 cm³/s |
| Flat Lever Clamps | 3.3 to 21.5 kN | 4.0 to 9.0 mm | 250 bar | 10 bar | 150 °C | 15.7 to 55 cm³/s |
| Position Flexible Clamps | 2.3 to 12.1 kN | 2.1 to 4.1 mm | 70 bar | 10 bar | 80 °C | 16 to 150 cm³/s |
| Flat Clamps | 2.5 to 13.0 kN | 2.7 to 5.1 mm | 250 bar | 20 bar | 80 °C | 4 to 40 cm³/s |
| Block Clamps | 7.5 to 50.0 kN | 6.0 to 16.0 mm | 120 to 500 bar | 10 to 50 bar | 80 °C | 10 to 100 cm³/s |
| Slide Pivot Clamps | 10.0 kN | 5.5 mm | 350 bar | 10 bar | 80 °C | 10 cm³/s |
Clamping Lever Variants and Seals
Clamping levers come in various forms: swivel contact bolts, long/short levers, cranked levers, dome-head levers, and leverless versions. Seal materials include FKM, NBR, and PUR, with some models featuring metallic wiper edges for enhanced durability and protection against contaminants.
Mounting and Installation
Most clamps support any mounting position; some require counterweight adaptation. Hydraulic connections can be adapted via accessories to fit pipe thread or drilled channel configurations.
Summary of Critical Information
- Operating pressures range from 70 to 500 bar depending on clamp type.
- Clamping forces vary from 1.3 kN to 50 kN, covering a wide range of applications.
- Temperature limits mostly up to 80 °C, with some models rated for 150 °C.
- Position monitoring options improve safety and process control.
- Many models enable clamping without side loads, enhancing clamp longevity and reliability.
- Compact designs allow installation in restricted spaces.
Functional Descriptions and Usage
Hinge Clamps: Double-acting cylinders with integrated swivel levers redirect piston force 180° to clamp workpieces, optimized for vertical force application.
Compact Clamps: Double-acting pull-type cylinders converting piston pull force directly into clamping force with minimal side loads.
Flat Lever Clamps: Single or double-acting, piston moves upward to swivel lever; force redirected 180° onto workpiece.
Clamping without side loads is achievable by aligning clamping points with pivot heights or via linear lever movement in compact clamps.
Accessories and Options
- Position monitoring via pneumatic or inductive sensors.
- Built-in adjustable flow control valves for clamping speed regulation.
- Long clamping levers available to customize reach; longer levers reduce force requiring pressure adjustment.
Technical Notes
- Clamps are static leakage-free under pressure; minor residual oil film during piston extension extends seal life.
- Exceeding flow rate limits can cause overload and wear; supply line throttling recommended.
- Proper bleeding of hydraulic oil air is critical to avoid delayed clamping.
- Clamping force depends on lever length; consult data sheets for pressure adjustments.
Product Range and Resources
Multiple data sheets provide detailed specifications for various clamp types and pressure ratings. Demonstration videos are available online illustrating clamp functions and applications.
Summary Tables
| Clamp Type | Max Pressure (bar) | Max Clamping Force (kN) | Seal Material | Max Operating Temp (°C) | Flow Rate (cm³/s) | Side Load Clamping | Position Monitoring |
|---|---|---|---|---|---|---|---|
| Mini Compact Clamp | 200 | 1.3 | NBR / PUR | 80 | 5 | Yes | Optional |
| Hinge Clamp (Cartridge Type) | 250 | 3.3 - 21.5 | FKM | 150 | 15.7 - 55 | Yes | Optional |
| Flat Lever Clamp | 250 | 7.5 - 31.0 | NBR | 80 | 10 - 20 | Yes | Standard bore holes for pneumatic monitoring |
| Block Clamp | 500 | 15.0 - 50.0 | NBR | 80 | 25 - 100 | Yes | Optional |
This structured summary consolidates key technical data, functional principles, and operational guidelines for hydraulic clamps, supporting informed selection and application in industrial clamping tasks.
Catalog excerpts
Program summary HINGE CLAMPS and CLAMPS Mini hinge clamps Hinge clamps Compact clamps Flat lever clamps Position flexible clamps Flat clamps Block clamps Slide pivot clamps
Open the catalog to page 1
Program summary HINGE CLAMPS and CLAMPS Mini hinge clamps Type mini compact clamps cartridge type 200 bar drilled channels drilled channels double acting double acting double acting – minimum dimensions – body partially recessible – minimum dimensions – body partially recessible – minimum dimensions (exterior diameter only 22 mm) Position monitoring Clamping range Clamping lever variants with swivel contact bolt long clamping lever without clamping lever with swivel contact bolt long clamping lever without clamping lever short clamping lever Max. flow rate clamping Clamping without side loads...
Open the catalog to page 2
Hinge clamps Compact clamps cartridge type and flange type 250 bar pipe thread pipe thread or drilled channels pipe thread or drilled channels double acting double acting double acting double acting – interchangeable contact bolts – clamping possible without side loads – 4 sizes – built-in flow control valve – minimum dimensions – clamping possible without side loads – clamping possible without – 5 sizes side loads – 3 clamping directions selectable Option: inductive or pneumatic position m onitoring by extended piston rod Option: inductive or pneumatic position monitoring by extended piston...
Open the catalog to page 3
Compact clamps Flat lever clamps Position flexible clamps drilled channels drilled channels drilled channels pipe thread or drilled channels double acting single acting or double acting double acting double acting – minimum dimensions – clamping possible without side loads – minimum dimensions – particularly flat clamping lever can be swivelled into small r cesses e – minimum dimensions – particularly flat clamping lever can be swivelled into small recesses – clamping unit adapts itself position flexible to the height – workpiece support point adjustable Option: pneumatic clamping monitoring...
Open the catalog to page 4
Flat clamps Block clamps pipe thread or drilled channels pipe thread or drilled channels pipe thread or drilled channels pipe thread or drilled channels double acting double acting double acting double acting – high clamping force – compensation of side loads at the clamping point – minimum dimensions – compensation of side loads at the clamping point – high protection against swarf – versions with / without self-locking and welding spatter – clamping direction 0 to 360° – clamping lever retracts completely adjustable Slide pivot clamps Accessory: inductive control of the unclamping position...
Open the catalog to page 5
Important technical information Application Hydraulic hinge clamps are used for clamping of workpieces, when it is essential to keep the clamping area free of straps and clamping components for unrestricted workpiece loading and unloading. Workpiece clamping without any side loads The hinge clamp allows clamping without side loads, if the clamping point is exactly on the height of the pivot point of the lever. If the clamping point is within the indicated clamping range, the side load can be neglected. Function The hinge clamp is a double-acting hydraulic cylinder with integrated clamping lever....
Open the catalog to page 6
Important technical information Accessory: position monitorings Two series of the hinge clamps are optionally supplied with an extended piston rod (switch rod). A pneumatic or inductive position monitoring can be fixed at the bottom of the housing. Metallic wiper edge The hinge clamps and the compact clamps are provided with a metallic wiper edge at the piston rod outlet. Thus, the subjacent FKM wiper is protected against hot swarf or high coolant pressure. For dry machining and minimum quantity lubrication as well as in case of accumulation of very small swarf, the hinge clamps should be regularly...
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Videos regarding function and application on YouTube Compact clamp B 1.827 with pneumatic clamping monitoring https://www.youtube.com/watch?v=Hxcp9ry3Pvo Mini compact clamp B 1.8271 with minimum dimensions and a unique fixing principle https://www.youtube.com/watch?v=sDu1iO9aw18 Position flexible clamp B 1.733 for supporting and clamping of unstable workpiece sections Römheld GmbH Friedrichshütte Römheldstraße 1– 5 35321 Laubach, Germany Tel.: + 49 6405 89 0 E-mail: [email protected] www.roemheld.com Program summary Hinge clamps · 0821 en · Subject to modifications
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