Rod Lock Catalog
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Catalog excerpts

Rod Lock Catalog - 1

LINEAR MOTION CONTROL Technical Data Sheet Rod Locks RLSS Series Nexen’s new generation of linear holding/locking devices take rod locking technology to the next level. With superior performance, these springengaged, air-released units supplement air cylinders and guide rods for holding in poweroff/e-stop situations. High clamping forces ensure positive holding with minimal air required for release. Choose from our standard products, or we will work with you to meet your unique application specifications. Precision Operation Maintains Accurate Positioning The RLSS series of Rod Locks guarantees accurate positioning and provides precision holding while other operations are performed. The Rod Lock engages without causing any rod displacement, and also features extremely low backlash making them ideal for precision applications. Large Clamping Surface Ensures Consistent Performance The RLSS line is designed with a large clamping surface that provides uniform force to the rod contact area on every engagement. The clamping mechanism utilizes numerous ball bearing to reduce friction. Spring-engaged Units Engage in Power-off Situations Nexen’s Rod Locks are spring-engaged, so they operate even in power-off situations to promote safety for operators and machinery. Multiple springs ensure reliable performance and redundancy. The fast response time of these springengaged products also increases positioning accuracy. Nexen’s Rod Locks also feature locking mode sensing capability that allows engagement/disengagement feedback with the use of an optional inductive sensor. Sealed to Withstand Harsh Environments Every RLSS Rod Lock is sealed to protect internal components. These seals are designed to withstand even harsh wash-down environments and are IP67 rated (anodized models exceed NEMA 4X rating). Rod Locks are available in natural brushed aluminum or with a black anodized coating. Manual Release The cam operated manual release feature mechanically disengages the rod lock with the simple turn of a hex screw using a standard wrench. The default-to-lock function springs back to the engaged position when releas

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Rod Lock Catalog - 2

Nexen's Static Rod Locks backlash, providing high accuracy in demanding applications. These spring-engaged, air-released units come in both ISO and NFPA sizes and will accept standard accessories. The Rod Lock’s large clamping surface ensures high clamping/holding force and Nexen offers models for use on a pneumatic cylinder or as a stand-alone unit on a guide rod. Customers can further increase holding forces by stacking multiple Rod Locks together. The patent pending design is sealed and features a natural brushed aluminum finish or a corrosion-resistant, anodized finish suitable for...

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Rod Lock Catalog - 3

ROD LOCK CUTAWAY (with manual release) Positioning Magnet Manual Release Breather Piston and Outer Collar Springs Ball Bearings Anodized Aluminum Housing (some models) Steel Clamping Collar Sensor Groove (for optional locking mode sensor) High Performance Guide Bushing No Rod Displacement on Engagement Large Clamping Surface IP67 Rated [exceeds NEMA 4X] Fast Response Time Extremely Low Backlash Spring-Engaged Units Profile Matches Cylinder 4 bar [60 psi] Release Pressure Manual Release Sensor (Optional) Maintains Accurate Positioning Consistent Clamping Force Suitable for Wash-Down...

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Rod Lock Catalog - 4

STAND-ALONE ROD LOCK SPECIFICATIONS Inch Rod Locks

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Rod Lock Catalog - 5

• Longer cylinder rod Extra length = rod lock length (F) - cylinder pilot length (M) (for dimensions, see pages 9 & 11) • Hardened rod (preferred) or hard chrome plating: See Requirements for Optimal Performance for specifications. • Longer tie rods on NFPA cylinders • Mounting bolts included with ISO cylinders CYLINDER MOUNTED ROD LOCK SPECIFICATIONS NFPA Rod Locks, ‘FM’ Mounts

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Rod Lock Catalog - 6

> All of Nexen's Rod Locks will operate in both directions, engaging with the same holding force. > Rod Locks can be mounted in any position. > Rod rotation is not allowed when a Rod Lock is engaged (not intended for torsional braking). > Nexen's Rod Lock complies with ISO 15552 standards. > Release pressures can range from 4-8 bar [60-120 psi]. > The Buna-N seals used are rated to 100°C [212°F]. > Allowable operating temperatures range from 0.5°C-66°C [33°F-1 50°F]. Units are capable of intermittent use at temperatures up to 100°C [212°F]. ROD LOCK AIR CHAMBER VOLUME & ENGAGEMENT TIME NFPA...

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Rod Lock Catalog - 7

AIR CONTROLS AND PROGRAMMING Minimum release pressure = 4 bar [60 psi] Maximum pressure = 8 bar [120 psi] Part Number Quick Exhaust Valve CYLINDER MOUNTING NOTE: Avoid repeated overlapping conditions when programming the Rod Lock into your system. (i.e.: forced motion during engagement or disengagement of the Rod Lock.) Shaft and/or collar wear will result. Design the control system to use the Rod Lock in static conditions. Cylinder functioning is regulated by a 5/3 (5 ported, 4-way, 3 [center] position) valve (use cylinder manufacturers’ recommended Cv valves), center open on the central...

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Rod Lock Catalog - 8

RLSSB Model Dimensions shown in millimeters. RLSSB Model

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Rod Lock Catalog - 9

RLSSB Model Dimensions shown in millimeters. RLSSB Model

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Rod Lock Catalog - 10

Sinking (NPN) Normally Open ROD LOCKS WITH MANUAL RELEASEFOR NFPA AND ISO CYLINDERS Manual Release Specifications • Cam operated, default to the lock function • No special tools needed for manual disengagement, uses standard size hex head Stainless steel disengagement screw Locking mode feedback sensor (optional) Tested and rated to 5,000 cycles NFPA Models

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Rod Lock Catalog - 11

NFPA (Dimensions shown in inches) Description * These products do not have locking mode T slot provisions. ISO (Dimensions shown in millimeters)

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Rod Lock Catalog - 12

www.nexengroup.com In accordance with Nexen's established policy of constant product improvement, the specifications contained in this document are subject to change without notice. Technical data listed in this document are based on the latest information available at the time of printing and are also subject to change without notice. For current information, please consult www.nexengroup.com nexen Nexen Group, Inc. 560 Oak Grove Parkway Vadnais Heights, MN 55127 Nexen has sales offices throughout Europe, Japan, and Australia.

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