Hydraulic Gerotor Pump

Drop-In Replacement for Obsolete Haldex Part No. H12P-30-B3 | Oilfield Equipment Manufacturer

P-250, 250-D-001

Features & Benefits

Cascon designed this drop-in replacement for the obsolete Haldex pump, part number H12P-30-B3. The catalog Haldex pump was discontinued, stranding a variety of equipment designs developed by manufacturers servicing the oil, gas and mining industry.

Note: This pump model is for sale and exclusively distributed by Walz & Krenzer, Inc. (Send an email or call +1-203-267-5712 for latest pricing and availability.)

Rugged cast iron and steel construction
Functional and mechanical equivalent to Haldex H12P-30-B3
Bidirectional rotation
Viton O-ring seals
Keyed drive shaft
Wide operating temperature range
Designed for continuous duty cycle

Performance Parameters

Part Number: 250-D-001
Application Fluid: Hydraulic Oils
Drive Type: Mechanical
Pump Type: Gerotor
Size: 4.7 D x 6.0 L
Weight: 19 lbs
Circuits: Circuit Max Flow Max Pressure Operating Speed

Single-circuit 18 gpm 1000 psi 1800 rpm
Fluid temperature range (˚F): -40 - 250
Duty cycle: Continuous

hydraulic gerotor pump for oil drilling industry

Draw-works Application

hydraulic gerotor pump for oil drilling industry

Engineered-to-Order Oil Pump

Customer Objective

The project started when a leading manufacturer of drawworks (and related drilling equipment for the oil and gas industry) identified demand in the oilfield market for a hydraulic gerotor pump that was no longer available. The original pump manufacturer decided to shut down their manufacturing line and obsolete the pump after nearly 30 years of production. To address this opportunity, the OEM chose Cascon to engineer and manufacture a drop-in replacement pump that would perform as well as, or better than, the previous one. The new pump would be required to:

Serve as a drop-in replacement for previous pump
Add reversible functionality
Incorporate design features and materials suited to relatively low production rates

Cascon Solution

While we are often asked to protect our customers’ technical trade secrets when designing high performance pumps and hydraulic motors for oil, gas and mining industries, this customer planned to resell the requested product as a catalog item replacement – and technical details were not highly confidential.

In order to optimize cost for the expected production volumes, Cascon designed and tooled sand castings for the pump’s cast-iron housings at one of its many casting suppliers. We then planned to complete final machining of the housings in our factory on state-of-the-art, multi-pallet machining centers to allow for variations in production volume.

A case hardened shaft and through-hardened powdered metal gerotor pump element were designed to complete the solution, providing a commercially viable solution for our customer’s business plan. The customer now supplies the pump, along with their other equipment, to the oil and gas industry.

Pump Features

Drop-in design: Replacement pump specifications allow for direct fit without OEM system modification.
Field-selectable rotation direction: Designed for versatility.
Primed exterior: Pump surface is prepped for customer painting.