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ATST - Automatic Torsion Spring Tester
Universal Tooling Example
ATST 500 Low Profile with Extended Bed Option

The ATST is a motorized torque / angle tester that is available in five load ranges: 25, 100, 200, 500 and 1,300 in-lb. Fast, quiet testing with closed loop servo drives. The solid steel base and aluminum frame is rugged for durability in many different testing environments. The ATST, like all LSI testers, comes standard with an NIST traceable certificate of calibration.

FLASH technology was redesigned from the ground up with full color interactive graphics using a 10.4" LCD touch screen interface and allows for on-demand statistical and graphical analysis and Larson Systems' new Quick Test and Quick Launch features. Quick Test automatically finds basic testing points without having to program anything except torque or angle limits. Quick Launch allows multiple operators to efficiently use one tester using fast user switching; no more time wasted saving and loading programs!

Absolute Zero

Take the guesswork out of testing with LSI’s revolutionary absolute zeroing technique. Used with custom interchangeable tooling, this technique improves repeatability of setups and results during testing. Parts are then measured against the nominal dimensions according to the drawing or specifications, not to a relative point requiring intuition and guesswork.

Universal Tooling Example

Custom Interchangeable Tooling - Click here for more details
Using LSI's custom interchangeable tooling technique, you can machine tooling blanks to fit your specific applications or send the information to us and we will do the work for you.

Custom Tooling Example
Custom Tooling Example
  • Achieve 30 second tool-less changeovers from type to type
  • Identical setups each time enhance repeatability
  • Pre-machined blanks make tooling inexpensive and standardized
  • Tooling can be designed to exactly match assembly features for best correlation
  • Built-in angle zeroing provides ± 0.1° setup accuracy every time
  • The best solution for repeating parts or specific spring types or families
Important Notice

Custom tooling can be a critical component for accurately testing your part. Click here for more details.

Universal Tooling Example
Universal Tooling Example

Universal Tooling - Click here for more details
With the universal tooling supplied by LSI, you can test many parts with no special fittings. This is great for unique or one-time job runs with a minimum of setup time.

  • 2", 3" & 4" universal fittings
  • A conventional approach that has good flexibility in making setups
  • Includes chuck, mandrill set to 17/32" diameter and reaction plate

Rapid Changeovers
Both custom and universal tooling is designed to be changed in seconds... YES! In just seconds, you can go from one setup to the next, maintaining your repeatability and reproducibility. Setups within ± 0.1°.

Torque Cartridge
Torque Cartridge

Smart Interchangeable Torque Cartridges
Switch from one torque cartridge to another in just minutes, allowing for a single tester to test a wide range of capacities quickly and accurately. Smart torque cartridges can be digitally calibrated. You can also send in only the smart torque cartridge to LSI for remote calibration (full system calibration is better than individual component calibration).

Delicate lower-capacity torque cartridges feature overload-preventing lockout mechanisms.

Standard Features

  • Motorized operation
  • Up to 24" part length capability (11.5" standard)
  • Standard 11" part Ø capability
  • Standard 0.1° angle resolution
  • 25 to 1,300 in-lb load capacities
  • FLASH interface
  • Smart interchangeable torque cartridges
  • Interchangeable tooling
  • Custom tooling or universal tooling options
  • Deflection compensation
  • Absolute zeroing
  • Virtually unlimited data / program storage
  • Digital calibration
  • NIST traceable calibration
  • Fatigue testing option
  • 120 volt Whisper Drive servo motor on 200 in-lb system
  • 240 volt single phase servo motor drive on 500 and 1,300 in-lb systems (NEMA 6-15 connector plug)

Optional Features

  • Extended bed

Safety Features

  • Test abort button (on-screen & remote)
  • Full interlocked enclosure
  • Software torque limits
  • Emergency stop button

Connectivity

  • Ethernet port for network printing or PC based data / test program management
  • USB for easy printing and software updates
  • Automation interface
  • Remote support / diagnostic capability via the internet
Torque Specifications
Load Cell
Capacity
Standard Resolution
0-20% FS 20-100% FS
25 in-lb 0.002 in-lb 0.02 in-lb
288 kg-mm 0.02 kg-mm 0.2 kg-mm
2,825 N-mm 0.2 N-mm 2 N-mm
100 in-lb 0.005 in-lb 0.05 in-lb
1,152 kg-mm 0.05 kg-mm 0.5 kg-mm
11,299 N-mm 0.5 N-mm 5 N-mm
200 in-lb 0.01 in-lb 0.1 in-lb
2,304 kg-mm 0.1 kg-mm 1 kg-mm
22,597 N-mm 1 N-mm 10 N-mm
500 in-lb 0.05 in-lb 0.5 in-lb
5,761 kg-mm 0.5 kg-mm 5 kg-mm
56,493 N-mm 5 N-mm 50 N-mm
1,300 in-lb 0.1 in-lb 1 in-lb
14,978 kg-mm 1 kg-mm 10 kg-mm
146,883 N-mm 10 N-mm 100 N-mm
Accuracy = ± Full Scale Resolution x 2
Angle Specifications
Range Resolution
0 - 100,000° 100,000°+
1,000,000° 0.1°
Accuracy = ± 0.2° / 3,600°
Deflection compensation
(5% to 95% FS) is < 0.2°
Ordering Information
Part Number Description Price
Tester
050-0000-0112-00 ATST 200 - Automatic Torsion Spring Tester 200 in-lb (11.5" Bed - Low Profile) Quote
050-0000-0112-02 ATST 200 - Automatic Torsion Spring Tester 200 in-lb (11.5" Bed - High Profile) Quote
050-0000-0112-06 ATST 200 - Automatic Torsion Spring Tester 200 in-lb (24" Bed - High Profile) Quote
050-0000-0112-08 ATST 200 - Automatic Torsion Spring Tester 200 in-lb (24" Bed - High Profile) Quote
050-0000-0112-01 ATST 500 - Automatic Torsion Spring Tester 500 in-lb (11.5" Bed - Low Profile) Quote
050-0000-0112-03 ATST 500 - Automatic Torsion Spring Tester 500 in-lb (11.5" Bed - High Profile) Quote
050-0000-0112-07 ATST 500 - Automatic Torsion Spring Tester 500 in-lb (24" Bed - Low Profile) Quote
050-0000-0112-09 ATST 500 - Automatic Torsion Spring Tester 500 in-lb (24" Bed - High Profile) Quote
050-0000-0112-04 ATST 1300 - Automatic Torsion Spring Tester 1,300 in-lb (11.5" Bed) Quote
050-0000-0112-05 ATST 1300 - Automatic Torsion Spring Tester 1,300 in-lb (24" Bed Profile) Quote
Factory Options
  Bed Extension for 24" parts Quote
FLASH Tester Software - Click here for more info
050-1000-0039-00 Basic Software Package Quote
050-1000-0039-01 Extra Software Package Quote
050-1000-0039-02 Pro Spring Software Package Quote
050-1000-0039-03 Fatigue Testing Software Package Quote
050-1000-0039-04 Pro Material Software Package Quote
050-1000-0039-05 Pro Ultimate Software Package Quote
Torque Cartridges
025-0000-0475-02 25 in-lb Torque Cartridge with Lockout Quote
025-0000-0378-05 100 in-lb Torque Cartridge Quote
025-0000-0378-06 200 in-lb Torque Cartridge Quote
025-0000-0378-07 500 in-lb Torque Cartridge Quote
025-0000-0378-08 1,300 in-lb Torque Cartridge Quote
Tooling Options
018-0000-1615-01 2" Ø Custom Tooling Blanks (1/4-28 thread) Quote
018-0000-1615-02 2" Ø Custom Tooling Blanks (10-32 thread) Quote
018-0000-1615-00 3.75" Ø Custom Tooling Blanks (1/4-28 thread) Quote
018-0000-1615-03 5" Ø Custom Tooling Blanks (1/4-28 thread) Quote
025-0000-0379-00 Universal Tooling Assembly (0.3 to 200 in-lb) Quote
025-0000-0353-00 Universal Tooling Assembly (25 to 1,300 in-lb) Quote
Material Testing Options
025-0000-0477-00 Wire Twist Grip Set - 0.028 to 0.250" Quote
025-0000-0477-01 Wire Twist Grip Set - 0.078 to 0.500" Quote
025-0000-0480-00 Wire Twist Solid Load Cartridge Quote
Calibration Equipment
025-0000-0354-00 Calibration Core Set (25 to 200 in-lb) Quote
025-0000-0367-03 Calibration Core Set (500 to 1,300 in-lb) Quote
025-0000-0368-01 1.01 lb Calibration Weight Set (0.3 to 3 in-lb) Quote
025-0000-0368-02 11 lb Calibration Weight Set (25 in-lb) Quote
025-0000-0368-03 40.5 lb Calibration Weight Set (100 to 500 in-lb) Quote
025-0000-0368-04 110.5 lb Calibration Weight Set (1,300 in-lb) Quote
Printer Options
025-0000-0464-01 Printer and Printer Cable for FLASH Series Quote
Accessories
025-0000-0356-00 Foam Vibration Damping Pad Quote
059-1000-0020-00 Dust Cover Quote

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Larson Systems Inc.
13847 Aberdeen Street NE
Ham Lake, MN 55304
Phone: 763-780-2131
Fax: 763-780-2182
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