Give us a call 763-780-2131

Printer icon Print This Page
Acrobat icon Acrobat Reader
Required to view PDF files
Flash icon Flash Player
Required to view videos
Valve Spring Tester
Valve Spring Tester with Double Stop Rod
Pictured with Double Stop Rod
Length Deflection Compensation Banner

Larson System's Testers Come With Length Deflection Compensation Standard!

Our testers have built in length deflection compensation. Our pre-programmed calculations will measure the load cell compression and correct the length. We do the measuring and the math for you, creating greater accuracy in testing results.

We have high precision valve spring testers that are ideal for valve springs used in go-kart or snowmobile engines all the way up to nitro injected top fuel engines.

This is an inexpensive tester with full features. The tester has a two-line backlit LED display of force and length and has deflection compensation for accurate readings at all times. It has a rugged cast-aluminum and steel frame, precision rack and pinion drive with adjustments for wear and convenient hand operation to apply force and adjust length. It includes standard length lock and mechanical overload stops to protect the tester from damage.

Part Testing Capacity
  • Standard 5" range
  • Standard 5" stroke
  • Up to 4" Ø platform (2" standard)
  • Standard 0.001" length resolution
  • Load capacities:
    • 200 lb
    • 750 lb
    • 1,500 lb
  • DHT software package

  • Compression testing of force and length
  • Tracking or peak modes (2,000 samples / sec)
  • Load cell and frame deflection compensation
  • Mechanical and software overload protection
  • Built-in shunt calibration verification
  • Digital calibration and linearization
  • Backlit digital LED display of force and length
  • Wipe-clean embossed key faceplate
  • Push-button force and length zeroing
  • NIST traceable calibration (optional)

Valve Spring Sorting System

SDC (Spring Data Collector) Software Logo

Try our software for "Spring Testing Data at Your Fingertips". With Larson System's SDC Software, your spring testing data can be accessed, stored and manipulated as it is generated. Store specifications for differentparts, load a set of parameters and clearly see which springs are out of spec using the on-screen graphical representation of the testing results. Save and print results or open the results file in Microsoft Excel. You have complete control of your testing data.

Force Specifications
Load Cell
200 lb 0.1 lb
91 kg 0.05 kg
890 N 0.5 N
750 lb 0.5 lb
340 kg 0.2 kg
3,336 N 2 N
1,500 lb 1 lb
680 kg 0.5 kg
6,672 N 5 N
Accuracy = ± Full Scale Resolution x 2
Length Specifications
0.001 in (± 0.005 in)
0.02 mm (± 0.1 mm)
Ordering Information
Part Number Description Price
050-0000-0109-04 V200 - 200 lb Valve Spring Tester Quote
050-0000-0109-02 V750 - 750 lb Valve Spring Tester Quote
050-0000-0109-03 V1500 - 1,500 lb Valve Spring Tester Quote
Factory Options
050-1000-0064-00 RS232 / USB ouput, DHT Family Quote
018-0000-4358-00 Solid Height (Coil Bind) Protection Plate - 2" Ø platorms Quote
025-0000-1310-00 Rubber Mounting Feet Upgrade Quote
025-0000-0225-00 Thru-Rod Support Kit (1/16 to 1/8" Ø x 6") Quote
025-0000-0485-00 4" Ø Platforms / Thru-Rod Support Kit (1/16 to 11/16" Ø ID x 8") Quote
025-0000-0191-00 Platforms - 4" Ø (Pair for 5/16-18 Mount) Quote
025-0000-0293-00 Single Stop Rod Quote
025-0000-0333-00 Double Stop Rod Quote
025-0000-0294-00 NiCad Rechargeable Battery (4-8 hr life) Quote
059-1000-0026-00 Dust Cover - 5" Range Rods Quote
025-0000-0487-03 Travelling Case Quote
025-0000-0783-00 8 Piece Valve Spring Retainer Set Quote
RS 232 Options
025-0000-0464-02 Ink Jet Printer (includes Parallel to 9pin RS 232 Adapter Cable) Quote
025-0000-0458-01 RS 232 to Parallel Printer Cable / Adapter (DB9) Quote
Software Options
050-0000-0075-00 SSS - Statistical & Spreadsheet Interface Software Quote
050-0000-0140-00 Excel Templates for Valve Spring Set Building and Certification Quote
050-1000-0060-00 Spring Data Collector Software (for use with DHT family testers) Quote
Power Supplies
025-1000-0396-00 Power Supply, 100-240 VAC 50-60 Hz (USA Plug) Quote
025-1000-0396-04 Power Supply, 100-240 VAC 50-60 Hz (International Plugs) Quote
NIST Traceable Calibration Certificate
100-1000-003-05 NIST Traceable Calibration Certificate Quote

Top icon
Larson Systems Inc.
13847 Aberdeen Street NE
Ham Lake, MN 55304
Phone: 763-780-2131
Top icon
LarsonSystems.com    |    SpringTesters.com    |    SpringGages.com