STAR 25

LSI’s STAR Series testers are motorized compression and extension force and length testing systems

  • Standard 25″ stroke
  • Mechanical overload stops
  • STAR 25 REQUIRES 240 VAC POWER INPUT
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STAR 25


LSI’s STAR Series testers are motorized compression and extension force and length testing systems. With their numerous load range capacities and load cell interchangeability, these testers will test a wide variety of springs or other test material. The STAR 25 can accommodate a high performance 2,000 or 3,000 lb drive with super precision capabilities.

This tester has solid machined aluminum construction with a heavy steel support riser as a backbone to build on, making it the most rigid workbench machine built by LSI. This C-frame style has high rigidity and low deflection characteristics that are commonly found in bridge style frames. Linear guideways make for smooth and precise motion and a servo motor and ball screw drive offers reliable and responsive testing. Unseen features like load cell and frame deflection compensation, length linearization, and smart load cell recognition make accurate and consistent testing easy by any operator.

These testers have software and mechanical overloads that protect from load cell stress damage – use our testers with confidence. Switching load cells is fast – it takes just minutes to change each load cell. Each smart interchangeable load cell has a signature that is read by the tester on power up and requires no special steps by the user. Change it and forget it!
Use LSI accessories to easily test difficult parts. A wide variety of load buttons, support platforms and hooks make the tester very versatile and convenient to use. The STAR series comes standard with 5/16-18 tapped holes in the center of the platforms for accessories or special fixtures.
These testers have a fast learn cycle. A new operator can make or modify test programs within minutes. Full use of all of the features can be learned in only an hour or two. The STAR system will be in use the same day it arrives and will be indispensable within a short time.
Each machine comes standard with NIST traceable calibration and is very insensitive to temperature variations for accurate testing over a wide range of conditions. In less than five minutes, accuracy can be verified by the user to comply with ISO 9000 standards, with built in shunt calibration or by using our Master Calibrated Spring.

Flexibility is the key to the STAR Series testing systems. These stand-alone systems are excellent for use in an inspection room or test lab yet are rugged enough for use right on the factory floor. They have incredible flexibility, allowing the operator to test a huge variety of test points and test configurations; from a simple one point F@L test to more complex 99 point tests, the STAR will get the job done.

Videos
Star 25 Introduction
Star 25 Introduction
STAR 25 Extension
STAR 25 Extension
STAR 25 Compression
STAR 25 Compression

STAR 25 Compression
STAR 25 Compression


Two load cell mounting spots increase the maximum range by 4″

Automated Operation
Computer controlled, motorized compression/extension for the same test every time.

Operator Independent Repeatable Testing
Your setup person, operator and inspector all get the same answers every time with simple programming, standardized setup, automatic testing and no button printing. The STAR is capable of good gage R&R’s on tight tolerance springs.

Inspection
The STAR is an excellent tool for the inspection lab. The user can perform many tests, from springs to tensile testing and other various materials testing.

Productivity
Typical test cycles range from 3.5 to 10 seconds. Send samples and test requirements to LSI for a specific rate quotation. Production monitor screens to setup and measure testing productivity.

Test Flexibility
Test one or two points, preset, measure free length, initial tension, rate or multiple rate and compare to specifications all in a single test cycle.

Versatility
Having interchangeable load cells means that the same tester can be used to test from 0.5 g to 3,000 lb. Stretch your spring extension testing capability with the modular extension bridge assembly..

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.

Force Specifications

Load Cell
Capacity		 Standard Resolution
0-20% FS 20-100% FS
2 lb 0.0001 lb 0.001 lb
907 g 0.02 g 0.2 g
8.9 N 0.0002 N 0.002 N
11 lb 0.0002 lb 0.002 lb
5 kg 0.1 g 1 g
49 N 0.001 N 0.01 N
22 lb 0.0005 lb 0.005 lb
10 kg 0.2 g 2 g
98 N 0.002 N 0.02 N
44 lb 0.001 lb 0.01 lb
20 kg 0.5 g 5 g
196 N 0.005 N 0.05 N
66 lb 0.001 lb 0.01 lb
30 kg 0.5 g 5 g
294 N 0.005 N 0.05 N
110 lb 0.002 lb 0.02 lb
50 kg 0.001 kg 0.01 kg
489 N 0.01 N 0.1 N
132 lb 0.002 lb 0.02 lb
60 kg 0.001 kg 0.01 kg
587 N 0.01 N 0.1 N
200 lb 0.005 lb 0.05 lb
91 kg 0.002 kg 0.02 kg
890 N 0.02 N 0.2 N
220 lb 0.005 lb 0.05 lb
100 kg 0.002 kg 0.02 kg
986 N 0.02 N 0.2 N
400 lb 0.01 lb 0.1 lb
181 kg 0.005 kg 0.05 kg
1,779 N 0.05 N 0.5 N
550 lb 0.01 lb 0.1 lb
249 kg 0.005 kg 0.05 kg
2,447 N 0.05 N 0.5 N
1,000 lb 0.02 lb 0.2 lb
454 kg 0.01 kg 0.1 kg
4,448 N 0.1 N 1 N
2,000 lb 0.05 lb 0.5 lb
907 kg 0.02 kg 0.2 kg
8,896 N 0.2 N 2 N
3,000 lb 0.1 lb 1 lb
1,361 kg 0.05 kg 0.5 kg
13,345 N 0.5 N 5 N
Accuracy = ± Full Scale Resolution x 2

Parts and Accessories

Tester

DescriptionPart Number 
STAR 25 - with Hinged Guard Door050-0000-0093-00Get Quote

Drive Options

DescriptionPart Number 
2,000 lb Servo Drive Motor - 240 Volt 1 Phase025-0000-0419-00Get a Quote
3,000 lb Servo Drive Motor - 240 Volt 1 Phase025-0000-0419-02Get a Quote

Factory and Accuracy Options

DescriptionPart Number 
Extension Bridge Assembly

Extension Bridge Assembly

Part Number: 025-0000-0425-02

Extend the range of your STAR tester.

025-0000-0425-02Get a Quote
High Resolution Length (0.0001 in)025-0000-0418-00Get a Quote

FLASH Tester Software

Click for information on FLASH Software Interface

DescriptionPart Number 
Basic Software Package050-1000-0039-00Get a Quote
Extra Software Package050-1000-0039-01Get a Quote
Pro Spring Software Package050-1000-0039-02Get a Quote
Fatigue Testing Software Package050-1000-0039-03Get a Quote
Pro Material Software Package050-1000-0039-04Get a Quote
Pro Ultimate Software Package050-1000-0039-05Get a Quote

Load Cells

DescriptionPart Number 
2 lb Smart Interchangeable Load Cell (2" Ø platform)025-0000-0414-01Get a Quote
11 lb Smart Interchangeable Load Cell (3.5" Ø platform)025-0000-0414-02Get a Quote
22 lb Smart Interchangeable Load Cell (3.5" Ø platform) 025-0000-0414-03Get a Quote
66 lb Smart Interchangeable Load Cell (3.5" Ø platform)025-0000-0414-04Get a Quote
110 lb Smart Interchangeable Load Cell (3.5" Ø platform)025-0000-0414-05Get a Quote
200 lb Smart Interchangeable Load Cell (3.5" Ø platform)025-0000-0414-06Get a Quote
550 lb Smart Interchangeable Load Cell (6" Ø platform)025-0000-0414-07Get a Quote
1,000 lb Smart Interchangeable Load Cell (6" Ø platform)025-0000-0414-08Get a Quote
2,000 lb Smart Interchangeable Load Cell (6" Ø platform)025-0000-0414-00Get a Quote

Load Cells - thru Rod Capable

DescriptionPart Number 
22 lb Smart Interchangeable Load Cell (3.5" Ø platform, 2" Ø thru-hole)

025-0000-0414-12Get a Quote
44 lb Smart Interchangeable Load Cell (3.5" Ø platform, 2" Ø thru-hole)

025-0000-0414-13Get a Quote
132 lb Smart Interchangeable Load Cell (3.5" Ø platform, 2" Ø thru-hole)

025-0000-0414-14Get a Quote
220 lb Smart Interchangeable Load Cell (3.5" Ø platform, 2" Ø thru-hole)

025-0000-0414-15Get a Quote
400 lb Smart Interchangeable Load Cell (3.5" Ø platform, 2" Ø thru-hole)

025-0000-0414-16Get a Quote
1,000 lb Smart Interchangeable Load Cell (3.5" Ø platform, 2" Ø thru-hole)

025-0000-0414-17Get a Quote
2,000 lb Smart Interchangeable Load Cell (3.5" Ø platform, 2" Ø thru-hole)

025-0000-0414-18Get a Quote
3,000 lb Smart Interchangeable Load Cell (3.5" Ø platform, 2" Ø thru-hole)

025-0000-0414-19Get a Quote

Accessories

DescriptionPart Number 
Thru-Rod Accessory Kit (1/16 to 3/8" Ø)

Thru-Rod Accessory Kit (1/16 to 3/8″ Ø)

Part Number: 025-0000-0424-01

Includes rods: 1/16, 3/32, 1/8, 1/4, 5/16 & 3/8 long, accompanying plates with matching holes, and upper and lower plates (no holes).

025-0000-0424-01Get a Quote
Thru-Rod Accessory Kit (1/2 to 2" Ø x 16 to 34")

Thru-Rod Accessory Kit (1/2 to 2″ Ø x 16 to 34″)

Part Number: 025-0000-0424-02

Includes 16″ rods with diameters: 1/2″, 5/8″, 3/4″, 1″, 1-1/4″, 1-1/2″ and 2″. Also includes accompanying plates with matching holes, 1″ button platform and a 5/8″ to 5/16″ adapter. The Thru-Rod Accessory Kit conveniently mounts on the side of your STAR 11 for easy access to all your thru-rod accessories.

025-0000-0424-02Get a Quote
8" Ø Platforms (5/16-18 thread)025-0000-0439-01Get a Quote
Pin Extension Hook Set - 2 / 66 / 110 lb max (Fixed Mount)

Pin Extension Hooks

Part Number: 025-0000-0250-04

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

025-0000-0250-04Get 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
025-0000-0183-01 Machined Extension Hook Set – 110 / 750 lb max. Includes protective carrying and storage case.
025-0000-0181-00Get 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
Fatigue Plate Assembly (Requires Fatigue Test Option)

Fatigue Plate Assembly

Part Number: 025-0000-0449-00

Test the endurance of your part, and keep track of it’s performance throughout the test. With capability of up to 10 million test cycles, you can put your part in and forget about it! And if the part falls below spec, the test automatically stops.

Test up to 8 springs or other parts at a time with Larson’s Fatigue Plate Assembly. Special knobs keep parts in place during testing; choose diameters between 3/4″, 1/2″, and 1/4″.

  • Up to 10 million cycles
  • Abort test on bad condition
  • Performance test at beginning, during, and after fatigue test as desired
  • 10 million cycle option included with Fatigue Assembly or Pro Ultimate Software Package, or as a separate feature.
How do you use the Fatigue Testing Option?
Typical test:
The part must be cycle tested 90,000 cycles from 2.2 to 1.8″. Performance at the end of the cycle test must maintain load ratings.
The Spring Characteristics
Free Length
Load 1
Load 2
Rate
Solid Height		 3.000″
45 ± 10% @ 2.200″
68 ± 10% @ 1.800″
57.5 ± 10% measured between 2.2 and 1.8″
1.400 max
Test Procedure
F @ L
F @ L
Rate
F @ L
Fatigue
F @ L
F @ L
Rate
F @ L
Fatigue
F @ L
F @ L
Rate
F @ L
Fatigue
F @ L
F @ L
Rate		 45 ± 10 % @ 2.200″
68 ± 10 % @ 1.800″
57.5 ± 10%
@ 2.2″
30,000 cycles @ 1.800″
45 ± 10 % @ 2.200″
68 ± 10 % @ 1.800″
57.5 ± 10%
@ 2.2″
30,000 cycles @ 1.800″
45 ± 10 % @ 2.200″
68 ± 10 % @ 1.800″
57.5 ± 10%
@ 2.2″
30,000 cycles @ 1.800″
45 ± 10 % @ 2.200″
68 ± 10 % @ 1.800″
57.5 ± 10%		 Performance test

Positioning move
Cycle test
Performance test

Positioning move
Cycle test
Performance Test

Positioning move
Cycle test
Performance Test
025-0000-0449-00Get a Quote
Wire Crimp Pull Fixture - Upper

Wire Crimp Pull Fixture – Upper

Part Number: 025-0000-0428-02

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.

025-0000-0428-02Get 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 – Upper

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
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
Dust Cover

Dust Cover

Part Number: 059-1000-0022-00

059-1000-0022-00Get a Quote
TUL - Twist Under Load

Twist Under Load

Part Number: 050-0000-0099-00

Graduated Markers
The Twist Under Load has indicating marks that will measure the amount of twist in any given spring.

Capacity
From 10 to 2,000 lbs and up to 4″ Ø.

Captivated Ball Bearings
With lubricated ball bearings, this unit will rotate smoothly and with very light force.

Universal Mounting (excluding the Flash 11 & Flash 24)
Will mount to any Larson tester, or any tester with 5/16-18 mounting holes.

050-0000-0099-00Get a Quote
Spring Guard (14-50, 20-100)025-0000-0162-00Get a Quote
Offset Plates For Thru-Rod Testing; .5", 1.0" diameter, STAR Tester 025-0000-0536-00Get a Quote
Star PinThru Platform, .Ø 1.000, Platform 8.00 OD018-0000-3014-10Get a Quote
Star PinThru Platform, .Ø 1.250, Platform 8.00 OD018-0000-3014-11Get a Quote
Star PinThru Platform, .Ø 1.500, Platform 8.00 OD018-0000-3014-12Get a Quote
Star PinThru Platform, .Ø 2.000, Platform 8.00 OD018-0000-3014-13Get a Quote
Star PinThru Platform, 5/8-18 Thread Hole, Platform 8.00 OD018-0000-3014-14Get a Quote

Printer Options

DescriptionPart Number 
Inkjet Printer (with driver install)025-0000-0464-01Get a Quote
Inkjet Printer (with driver install) B & W025-0000-0464-03Get a Quote
Laser Pro Printer (with driver install) B & W025-0000-0464-04Get a Quote

Installation / Training

DescriptionPart Number 
On-Site Installation & Training100-0000-0006-00Get a Quote