FDHT 1500
Force Digital Hand Tester - 1,500 lbf Capacity

This is the heavy-duty version of our FDHT, a tension / compression tester with force-only measuring. It is equipped with a high-resolution force measuring system to display current or peak force and can be fitted to perform a variety of force tests.

  • Up to 72″ range (18″ standard)
  • Up to 36″ stroke (13″ standard)
  • Up to 8″ Ø platform
See all features
Customize & Buy

FDHT 1500 – Force Digital Hand Tester

This is the heavy-duty version of our FDHT, a tension / compression tester with force-only measuring. It is equipped with a high-resolution force measuring system to display current or peak force and can be fitted to perform a variety of force tests. Standard pull lengths of 12” can be increased with optional extended rods to up to 48” to test long parts. 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. This tester has no thru-hole feature.

 

Includes Length Deflection Compensation

What is length deflection compensation?
All force/lengh testing devices, regardless of manufacturer, have additional deflection by the load cell and tester frame which occurs as the spring is loaded. If you buy/use a tester without deflection compensation, measurements might include significant length errors.
Spring deflection, also known as spring travel or motion, is the action of a compression spring compressing (being pushed), an extension spring extending (being pulled), or a torsion spring winding (being twisted) when a load is applied or released. This is one characteristic (spring deflection) that is measured by a Larson Systems Spring Tester.

Larson Systems has BUILT-IN Length Deflection Compensation so that the user does not have to calculate and apply length corrections. Most competitors do not have length deflection compensation.

With a Larson Systems product, forget about calculating load cell and frame deflection when testing, we’ve got you covered.

SDC Software Demo

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 different parts, 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.

Free Demo

Force Specifications

Load Cell
Capacity		 Standard Resolution High Resolution*
0-100% FS 0-20% FS 20-100% FS
2 lb 0.001 lb 0.0001 lb 0.001 lb
907 g 0.2 g 0.02 g 0.2 g
8.9 N 0.002 N 0.0002 N 0.002 N
11 lb 0.005 lb 0.0005 lb 0.005 lb
5 kg 0.002 kg 0.0002 kg 0.002 kg
49 N 0.02 N 0.002 N 0.02 N
22 lb 0.01 lb 0.001 lb 0.01 lb
10 kg 0.005 kg 0.0005 kg 0.005 kg
98 N 0.05 N 0.005 N 0.05 N
66 lb 0.02 lb 0.002 lb 0.02 lb
30 kg 0.01 kg 0.001 kg 0.01 kg
294 N 0.1 N 0.01 N 0.1 N
110 lb 0.05 lb 0.005 lb 0.05 lb
50 kg 0.02 kg 0.002 kg 0.02 kg
489 N 0.2 N 0.02 N 0.2 N
200 lb 0.1 lb 0.01 lb 0.1 lb
91 kg 0.05 kg 0.005 kg 0.05 kg
890 N 0.5 N 0.05 N 0.5 N
750 lb 0.5 lb 0.05 lb 0.5 lb
340 kg 0.2 kg 0.02 kg 0.2 kg
3,336 N 2 N 0.2 N 2 N
1,500 lb 1 lb 0.1 lb 1 lb
680 kg 0.5 kg 0.05 kg 0.5 kg
6,672 N 5 N 0.5 N 5 N
Accuracy = ± Full Scale Resolution x 2
*Requires High Resolution Force option 050-0000-0107-00

Parts and Accessories

Tester

DescriptionPart Number 
FDHT 1500 - Force Digital Hand Tester (750 lb capacity, lever operated)050-0000-0101-02Get a Quote

Accuracy and Factory Options

DescriptionPart Number 
High Resolution Force (10X Resolution from 0-20% FS)050-0000-0107-00Get a Quote
Peak Mode050-1000-0010-01Get a Quote
RS232 / USB output050-1000-0064-00Get a Quote
Micro Length Adjust Assembly (2,000 lb capacity)

Micro Length Adjust Assembly – 2,000 lb Cap.

025-0000-0434-00

Make extremely accurate length adjustments using two speeds.

025-0000-0434-00Get a Quote
MicroAdjust Wrenchless Stop Assembly025-0000-0676-00Get a Quote
Lower Mounted Load Cell Kit FDHT 1500025-0000-0659-00Get a Quote
36" Support Rods for 24" Range

Extended Range Rods and Stroke

Extended range rods and stroke give you greater flexibility.

Part Number Description
025-0000-0442-00 Extended Range Rods to 24″
025-0000-0437-00 Extended Range Rods to 36″
025-0000-0438-00 Extended Range Rods to 48″
025-0000-0442-01 Extended Range Rods to 60″
025-0000-0442-02 Extended Range Rods to 72″
025-0000-0446-21 Extended Stroke to 18″
025-0000-0446-22 Extended Stroke to 24″
025-0000-0446-25 Extended Stroke to 36″
025-0000-0442-00Get a Quote
48" Support Rods for 36" Range

Extended Range Rods and Stroke

Extended range rods and stroke give you greater flexibility.

Part Number Description
025-0000-0442-00 Extended Range Rods to 24″
025-0000-0437-00 Extended Range Rods to 36″
025-0000-0438-00 Extended Range Rods to 48″
025-0000-0442-01 Extended Range Rods to 60″
025-0000-0442-02 Extended Range Rods to 72″
025-0000-0446-21 Extended Stroke to 18″
025-0000-0446-22 Extended Stroke to 24″
025-0000-0446-25 Extended Stroke to 36″
025-0000-0437-00Get a Quote
60" Support Rods for 48" Range

Extended Range Rods and Stroke

Extended range rods and stroke give you greater flexibility.

Part Number Description
025-0000-0442-00 Extended Range Rods to 24″
025-0000-0437-00 Extended Range Rods to 36″
025-0000-0438-00 Extended Range Rods to 48″
025-0000-0442-01 Extended Range Rods to 60″
025-0000-0442-02 Extended Range Rods to 72″
025-0000-0446-21 Extended Stroke to 18″
025-0000-0446-22 Extended Stroke to 24″
025-0000-0446-25 Extended Stroke to 36″
025-0000-0438-00Get a Quote
72" Support Rods for 60" Range

Extended Range Rods and Stroke

Extended range rods and stroke give you greater flexibility.

Part Number Description
025-0000-0442-00 Extended Range Rods to 24″
025-0000-0437-00 Extended Range Rods to 36″
025-0000-0438-00 Extended Range Rods to 48″
025-0000-0442-01 Extended Range Rods to 60″
025-0000-0442-02 Extended Range Rods to 72″
025-0000-0446-21 Extended Stroke to 18″
025-0000-0446-22 Extended Stroke to 24″
025-0000-0446-25 Extended Stroke to 36″
025-0000-0442-01Get a Quote
84" Support Rods for 72" Range

Extended Range Rods and Stroke

Extended range rods and stroke give you greater flexibility.

Part Number Description
025-0000-0442-00 Extended Range Rods to 24″
025-0000-0437-00 Extended Range Rods to 36″
025-0000-0438-00 Extended Range Rods to 48″
025-0000-0442-01 Extended Range Rods to 60″
025-0000-0442-02 Extended Range Rods to 72″
025-0000-0446-21 Extended Stroke to 18″
025-0000-0446-22 Extended Stroke to 24″
025-0000-0446-25 Extended Stroke to 36″
025-0000-0442-02Get a Quote
Gear Rack Assembly - 18" Stroke

Extended Range Rods and Stroke

Extended range rods and stroke give you greater flexibility.

Part Number Description
025-0000-0442-00 Extended Range Rods to 24″
025-0000-0437-00 Extended Range Rods to 36″
025-0000-0438-00 Extended Range Rods to 48″
025-0000-0442-01 Extended Range Rods to 60″
025-0000-0442-02 Extended Range Rods to 72″
025-0000-0446-21 Extended Stroke to 18″
025-0000-0446-22 Extended Stroke to 24″
025-0000-0446-25 Extended Stroke to 36″
025-0000-0446-21Get a Quote
Gear Rack Assembly - 24" Stroke

Extended Range Rods and Stroke

Extended range rods and stroke give you greater flexibility.

Part Number Description
025-0000-0442-00 Extended Range Rods to 24″
025-0000-0437-00 Extended Range Rods to 36″
025-0000-0438-00 Extended Range Rods to 48″
025-0000-0442-01 Extended Range Rods to 60″
025-0000-0442-02 Extended Range Rods to 72″
025-0000-0446-21 Extended Stroke to 18″
025-0000-0446-22 Extended Stroke to 24″
025-0000-0446-25 Extended Stroke to 36″
025-0000-0446-22Get a Quote
Gear Rack Assembly - 36" Stroke

Extended Range Rods and Stroke

Extended range rods and stroke give you greater flexibility.

Part Number Description
025-0000-0442-00 Extended Range Rods to 24″
025-0000-0437-00 Extended Range Rods to 36″
025-0000-0438-00 Extended Range Rods to 48″
025-0000-0442-01 Extended Range Rods to 60″
025-0000-0442-02 Extended Range Rods to 72″
025-0000-0446-21 Extended Stroke to 18″
025-0000-0446-22 Extended Stroke to 24″
025-0000-0446-25 Extended Stroke to 36″
025-0000-0446-25Get a Quote

Load Cells

DescriptionPart Number 
Load Cell - 2 lb025-0000-0394-21Get a Quote
Load Cell - 11 lb025-0000-0394-22Get a Quote
Load Cell - 22 lb025-0000-0394-23Get a Quote
Load Cell - 66 lb025-0000-0394-24Get a Quote
Load Cell - 110 lb025-0000-0394-25Get a Quote
Load Cell - 200 lb025-0000-0394-26Get a Quote
Load Cell - 750 lb (6" Ø platform)025-0000-0433-10Get a Quote
Load Cell - 1,500 lb (6" Ø platform)025-0000-0433-11Get a Quote

Accessories

DescriptionPart Number 
Rechargeable Battery, 6V Kit025-1000-0491-00Get a Quote
Extension Spring Swivel Wire Hook - 2 lb cap (0.030" Ø wire)

Wire Extension Hooks – 2 lb max (0.030″ Ø)

Part Number: 025-0000-0340-05

Medium duty hooks for your extension testing.

025-0000-0340-05Get a Quote
Extension Spring Swivel Wire Hook - 2 lb cap (0.050" Ø wire)

Wire Extension Hooks – 2 lb max (0.050″ Ø)

Part Number: 025-0000-0340-06

Medium duty hooks for your extension testing.

025-0000-0340-06Get a Quote
Pin Extension Hooks

Pin Extension Hooks

Light duty hooks for your extension testing. The above pictures show 025-0000-0250-05 (including the swivel mount).

Part Number Description
025-0000-0250-01 Pin Extension Hooks – 2 lb max (Fixed Mount)
025-0000-0250-02 Pin Extension Hooks – 66 lb max (Fixed Mount)
025-0000-0250-03 Pin Extension Hooks – 110 lb max (Fixed Mount)
025-0000-0250-04 Pin Extension Hooks Set – 2 / 66 / 110 lb max (Fixed Mount) Comes with protective carrying and storage case.
025-0000-0250-05 Pin Extension Hooks Set – 2 / 66 / 110 lb max (Swivel Mount) Comes with protective carrying and storage case.
025-0000-0250-04Get a Quote
Wire Extension Hooks

Wire Extension Hooks

Part Number: 025-0000-0523-00

Medium duty hooks for extension testing. Protective carrying and storage case included with sets.

Part Number Description
025-0000-0340-01 Wire Extension Hooks – 10 lb max (1/16″ Ø wire)
025-0000-0340-02 Wire Extension Hooks – 66 lb max (3/32″ Ø wire)
025-0000-0340-00 Wire Extension Hooks – 110 lb max (1/8″ Ø wire)
025-0000-0340-03 Wire Extension Hook Set – 10 / 66 / 110 lb max. Includes protective carrying and storage case.
025-0000-0514-00 Wire Extension Hooks – 1,000 lb max (5/16″ Ø wire)
025-0000-0523-00 Extension Hook Set – Pin & Swivel – 10 / 66 / 110 / 1,000 lb
025-0000-0523-00Get a Quote
Machined Extension Hooks

Machined Extension Hooks

Part Number: 025-0000-0181-00

Heavy duty hooks for your extension testing.

Part Number Description
025-0000-0183-00 Machined Extension Hooks – 110 lb max
025-0000-0181-00 Machined Extension Hooks – 750 lb max
025-0000-0269-00 Machined Extension Hooks – 2,000 lb max
025-0000-0183-01 Machined Extension Hook Set – 110 / 750 lb max. Includes protective carrying and storage case.
025-0000-0181-00Get a Quote
Wire Crimp Pull Fixture - Upper, 1/32 to 7/16 slot width

Wire Crimp Pull Fixture – Upper

Part Number: 025-0000-0271-00

Test your wire crimp’s integrity with LSI’s wire crimp fixtures. The upper pull fixture features 18 slots ranging from 0.031″ to 0.437″ and can accommodate up to #4 gage wire. Choose between 110 and 1,000 lb lower grip fixtures.

025-0000-0271-00Get a Quote
Wire Crimp Grip Fixture - Lower 110 lb

Wire Crimp Pull Fixture – Lower

Part Number: 025-0000-0274-00

Test your wire crimp’s integrity with LSI’s wire crimp fixtures. The upper pull fixture features 18 slots ranging from 0.031″ to 0.437″ and can accommodate up to #4 gage wire. Choose between 110 and 1,000 lb lower grip fixtures.

025-0000-0274-00Get a Quote
Wire Crimp Grip Fixture - Lower 1,000 lb

Wire Crimp Pull Fixture – Lower

Part Number: 025-0000-0272-00

Test your wire crimp’s integrity with LSI’s wire crimp fixtures. The upper pull fixture features 18 slots ranging from 0.031″ to 0.437″ and can accommodate up to #4 gage wire. Choose between 110 and 1,000 lb lower grip fixtures.

025-0000-0272-00Get a Quote
LSI Wedge Grips

LSI Wedge Grips

Ideal for testing wires, strip material and plastic tape or films. Spring loaded jaws automatically close and tighten as tension is applied.

 

Part Number Description
025-0000-0428-00 Wedge Grips 0-0.350″ (1 Jaw / 1 Grip Set)
025-0000-0428-01 Wedge Grips 0.250-0.600″ (1 Jaw / 1 Grip Set)
025-0000-0428-02 Wedge Grips 0-0.600″ (1 Jaw / 2 Grip Sets)
018-0000-1964-00 Wedge Grips 0-0.350″ (1 Grip Set)
018-0000-1971-00 Wedge Grips 0.250-0.600″ (1 Grip Set)
025-0000-0428-00Get a Quote
Smooth Jaw Wire Chucks - 100 lb

Wire Chucks

Part Number: 025-0000-0193-00

For extension wire breakage testing: accepts 0.020″ to 0.312″ Ø wire.

025-0000-0193-00Get a Quote
Serrated Jaw Wire Chucks - 200 lb

Wire Chucks

Part Number: 025-0000-0193-01

For extension wire breakage testing: accepts 0.020″ to 0.312″ Ø wire.

025-0000-0193-01Get a Quote
Smooth Jaw Wire Chucks - 400 lb

Wire Chucks

Part Number: 025-0000-0193-02

For extension wire breakage testing: accepts 0.020″ to 0.312″ Ø wire.

025-0000-0193-02Get a Quote
5/16-18 M to 10-32 M/F Thread Adapter

Thread Adapters

Part Number: 018-0000-1718-00

Use differently threaded attachments with your Larson tester.

018-0000-1718-00Get a Quote
5/16-18 M to M6 M/F Thread Adapter

Thread Adapters

Part Number: 018-0000-1718-01

Use differently threaded attachments with your Larson tester.

018-0000-1718-01Get a Quote
5/16-18 M to M4 M/F Thread Adapter

Thread Adapters

Part Number: 018-0000-1718-02

Use differently threaded attachments with your Larson tester.

018-0000-1718-02Get a Quote
Dust Cover - 18" Range Rods

Dust Cover

Part Number: 059-1000-0016-00

059-1000-0016-00Get a Quote
Dust Cover - 24" Range Rods

Dust Cover

Part Number: 059-1000-0017-00

059-1000-0017-00Get a Quote
Dust Cover - 36" Range Rods

Dust Cover

Part Number: 059-1000-0018-00

059-1000-0018-00Get a Quote
Dust Cover - 48" Range Rods

Dust Cover

Part Number: 059-1000-0019-00

059-1000-0019-00Get a Quote

Software

DescriptionPart Number 
SSS - Statistical & Spreadsheet Interface Software

Total Spring Inspection
The SSS software can connect to any LSI manual tester, including the DHT and the TST, and virtually any measuring device that can send data via RS232. The SSS can also accept data from the keyboard. By setting up a specific testing method, you can test your springs reliably and repeatedly and generate one comprehensive report.

Click here to view

050-0000-0075-00Get a Quote
Spring Data Collector Software

Force@Length Data at Your Fingertips!
With the Larson Systems’ SDC Software, your spring testing results can be accessed, stored and manipulated as they are generated, giving you complete control of your spring testing data.

Click here to view

050-1000-0060-01Get a Quote

Power Supplies

DescriptionPart Number 
Power Supply, 100-240 VAC 50-60 Hz (USA Plug)025-1000-0396-00Get a Quote
Power Supply, 100-240 VAC 50-60 Hz (International Plugs)025-1000-0396-04Get a Quote