Varco Pipe Racker Brake Application0 pages

Varco Systems Pipe Handling
System Motor Brake Upgrade
Posistop X-Class Brakes Solve the Problem
There has been an ongoing reliability issue with the
electric brakes utilized on the PRS hoist carriage and
arm linear actuator motors. The main problem area has
been corrosion of the internal electric brake components due to water ingress. Maintenance has also been
as issue as these electric brakes were explosion proof
for hazardous area use and could only be serviced by
the European Supplier.
Where are they used:
This reliability problem affects the Varco PRS-3, -3i, -4i, -5, -5R
and –6i Pipe Handling systems.
Assemblies affected included:
1. Hoist Carriage
2. Griping Arm Linear Actuator
3. Trailing Arm Linear Actuator
4. Lower Drive
The Solution:
The Posistop X-Class Motor Brake is designed with patented oil shear technology for smooth precise stops and
long service life. The rugged cast iron totally enclosed housings provide high heat dissipation and protects the
multiple friction surfaces from hostile environments.
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Protected from the Environment
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Ultra-Quick Response
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No need for periodic adjustment or disk replacement.

Designed for the environment
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Normal maintenance requires only periodic checking and
maintaining the oil level. A simple method of checking stack
wear to predict and schedule maintenance. Easy to overhaul
the field.

No Adjustment needed – ever.
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“Quick Mount” design means just that, quick and easy mounting to standard NEMA and IEC motors. It comes ready to install. It does not require any disassembly of the brake for installation.

Easy Maintenance
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Engages in less than 10 msec.

Ease of Installation
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Totally enclosed and sealed marine duty unit prevents contamination; corrosion and failure do to
salt water environment.

Totally enclosed and sealed with biodegradable transmission fluid

Solidly built, no small parts, saltwater proof, will last for years

Force Control Industries, Inc
Phone: (513) 868-0900 Fax: (513) 868-2105
www.forcecontrol.com info@forcecontrol.com

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