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  3. PROGRAM SUMMARY Block cylinders

PROGRAM SUMMARY Block cylinders

PROGRAM SUMMARY Block cylinders

PROGRAM SUMMARY Block cylinders

Product catalog summary
Overview
This document provides a comprehensive summary of block cylinders, detailing their specifications, functionalities, and applications. Block cylinders are hydraulic components used for linear movements, available in single and double-acting versions, with various materials and configurations to suit different operational needs.

Specifications
- Operating Pressure: Up to 500 bar, with some models suitable for 250 bar in specific applications.
- Materials: Steel, aluminium, and bronze bodies.
- Piston Diameter: Ranges from 16 to 200 mm.
- Stroke Length: From 8 to 1,200 mm.
- Max Piston Speed: Typically 0.25 m/s, with some models reaching 0.50 m/s.
- Temperature Range: NBR seals up to +100°C, FKM seals up to +200°C.

Functional Features
- Single Acting: Hydraulic force acts in one direction, with return by spring or external forces.
- Double Acting: Hydraulic forces act in both directions, offering higher push force.
- Stroke End Control: Equipped with pressure-resistant proximity switches adjustable from 1 to 4 mm before end position.
- Position Monitoring: Available with inductive or magnetic sensors for complete stroke monitoring.

Design and Construction
- Housing: Options include keyway and centring collar for enhanced support.
- Piston Materials: Case-hardening steel, high alloy steel, nitrated or chromium-plated.
- Seals: Designed to prevent leakage, allowing only a micro-oil film for lubrication.

Accessories and Options
- Spherical Bearings: Available for models with external thread piston rods.
- Stroke Limitation: Achieved through distance bushings, allowing for adjustable stroke lengths.
- Mounting: Flexible mounting positions, with various fittings and contact bolts available.

Applications
Block cylinders are suitable for all hydraulically operated linear movements, offering high functional safety and adaptability to different pressure and temperature conditions.

Contact Information
Römheld GmbH Friedrichshütte
Römheldstraße 1–5, 35321 Laubach, Germany
Tel.: +49 6405 89 0
Email: [email protected]
Website: www.roemheld.com
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Catalog excerpts

PROGRAM SUMMARY Block cylinders-1

Program Summary BLOCK CYLINDERS Single and double acting Steel, aluminium and bronze bodies Piston diameter from 16 to 200 mm Position monitoring Stroke end control

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PROGRAM SUMMARY Block cylinders-2

Program summary BLOCK CYLINDERS Description Block cylinder Block cylinder Data sheet single acting double acting double acting Force to push at max. pressure Piston diameter Piston stroke Housing material Stainless steel version Hydraulic connection pipe thread flange with O-ring sealing pipe thread flange with O-ring sealing pipe thread flange with O-ring sealing Stroke limitation by distance bushing Housing with keyway Housing with centring collar Piston with external thread Piston with anti-rotation device Piston with stroke end cushioning Stroke end or position monitoring Accessories Type...

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PROGRAM SUMMARY Block cylinders-3

Block cylinder piston rod with exterior thread Pull-type cylinder Block cylinder for stroke end control Block cylinder with adjustable stroke end cushioning double acting single acting double acting double acting FKM: +200 °C proximity switch see below NBR: +100 °C FKM: +120 °C proximity switch see below pipe thread flange with O-ring sealing pipe thread pipe thread flange with O-ring sealing pipe thread flange with O-ring sealing proximity switch proximity switch

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PROGRAM SUMMARY Block cylinders-4

Block cylinder with extended piston rod Block cylinder with alu/bronze housing for magnetic sensors Hydraulic block cylinder design with tube Built-in elements piston and threaded bushing double acting double acting double acting double acting FKM: +200 °C proximity switch see below NBR: +100 °C FKM: +120 °C magnetic sensor see below NBR:  +80 °C FKM: +150 °C proximity switch see below pipe thread flange with O-ring sealing pipe thread flange with O-ring sealing pipe thread flange with O-ring sealing position monitoring magnetic sensor proximity switch

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PROGRAM SUMMARY Block cylinders-5

Important technical information Admissible piston side load If the piston rod is loaded with a side load, higher wear must be expected. For strokes up to 50 mm, the side load should not be higher than 3 % of the max. piston push force. Single acting The block cylinder S and the hydraulic block The hydraulic force acts only in one axial di- cylinder are equipped with high-quality guide rection. The return stroke is effected by spring rings. The admissible side load can be taken from the diagrams on the data sheets. force or by external forces. For all hydraulically operated linear movements. Fixation...

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PROGRAM SUMMARY Block cylinders-6

Important technical information Piston with stroke end cushioning Position monitoring complete Accessory - Contact bolts The damping effect can be adjusted for block Is mounted to the cylinder bottom of block Different contact bolts and coupling pins as per cylinder with stroke end cushioning and hy- ylinders with extended piston rod. c data sheet G 3.800. The inductive proximity switches are movable draulic block cylinders. and can monitor the complete piston stroke. Observe minimum distance between adjacent Stroke end control switching points as per data sheet. These block cylinders are equipped...

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