HMF Impulse Tester


Standard Models or to Your Specifications

Model 4002 Static Impulse Tester

Complies with SAE test procedures for Static Tests J343 and J517

Model 4003 Rotary Flex Impulse Tester

US Patent Number 5,339,677 Complies with SAE test procedures for Dynamic Test J1405 and Static Tests J343 and J517.


Model 4004 Hydraulic Flex Impulse Tester

Complies with SAE test procedures for Static Tests J343 and J517. Features a reciprocating manifold. Accommodates up to 12 hoses.

Model 4009 Static Impulse Tester

Complies with SAE J2050 procedures for alternately testing with heated and cooled oil.

Standard Impulse Chamber Specifications

Impulse Pressure Range: 1,250 psi minimum to 10,000 or 15,000 psi maximum

Test Oil Temperature: 100F to 300F

Impulse Rate: Adjustable from 15 to 75 cycles per minute

Square Wave Pattern: Per SAE J343 and J517

Standard Flex: To 2" inside diameter

Rotary Flex: To 1" inside diameter


Continuous, Reliable Service

HMF Impulse Testers simulate rigorous test conditions in a controlled laboratory environment, providing positive quality assurance.

Data Acquisition

Data acquisition logs cycle count, outlet manifold oil temperature, pressure rise, peak pressure and test sample default modes. Test data is stored for future hard copy printouts.

Operator Interface

An operator interface is connected to a PLC, allowing test parameters to be entered or changed on the fly. The operator interface displays ongoing test data.

Safety Features

The PLC shuts down testing operations the moment a sample failure occurs. Built-in diagnostics precisely locate and identify the faults to facilitate corrective actions by your operators. Sensors located on the test chamber provide fast shutdown in the event the chamber doors are opened while the Impulse Tester is in operation. Safety glass windows allow safe viewing of test chamber.

Remote Controls

The electronic console is an independent, freestanding unit which isolates it from heat, vibration and shock of the test machine. The console can be positioned or relocated to a convenient location.

No Operator Required

HMF Impulse Testers are programmable for continuous, unattended testing, 24 hours a day, for extended time periods.