Motor-cam driven fatigue test systems for compression springs — 1 or 2 springs simultaneously, up to 4 cycles per second. Continuously measures peak force to identify crack initiation, propagation, and catastrophic failure phases.
FTM Series
A spring is regarded as durable if it does not lose force or shorten under repeated loading before a pre-specified number of cycles. Spring fatigue is a critical property — the associated risk depends on the designed stress level and manufacturing process quality.
AGMPL FTM Series machines allow the study of stress levels under continuously applied loading and unloading cycles. Peak force data from each cycle helps identify failure phases, enabling designers to improve spring design, materials, heat treatment, and finishing.
Technical Data
| Parameter | Value |
|---|---|
| Max Force Rating | ±100 kN (approx. 10,000 kgf) |
| Force Resolution | 0.01 kN |
| Load Cell Overload Rating | 150% of rated capacity |
| Fatigue Stroke | 0 – 100 mm (motorised cam, manually adjustable) |
| Stroke Measurement | LVDT — 120 mm FSR, resolution 0.1 mm |
| Cross-head Measurement | Draw-wire encoder, resolution 0.1 mm |
| Stroke Rate | User-settable up to 4 cycles/second |
| Springs Simultaneously | 1 or 2 (same size and specification) |
| Max Free Height of Spring | 500 mm |
| Pre-load Application | Compression force or displacement (motorised cross-head) |
| Motor | 25 hp, 1440 rpm |
| Gear Box | 1:5 ratio |
| Speed Drive | Variable Frequency Drive (VFD) |
| Power Supply | 3-phase 415 V AC + 1-phase 230 V AC |
| Test Stop Conditions | Cycles completed / Specimen failure / Manual abort |
| Construction | Floor-mounted steel frame on anti-vibration pads; can be grouted |
Specifications subject to change as a result of continuous development.
Standard Equipment
Peak force is measured every cycle. Crack initiation, crack propagation, and catastrophic failure are each identifiable from the force history — giving you actionable insight into spring quality.
25 hp motor with 1:5 gearbox and Variable Frequency Drive delivers precise, stable cycle speeds up to 4 Hz across the full stroke range.
Apply pre-load in terms of compressive force or displacement — whichever suits your test standard — via a motorised cross-head with draw-wire encoder feedback.
Test one or two identical springs simultaneously on the same moving table. Comparative data from two specimens in a single run saves time and increases confidence.
A precision LVDT with 120 mm full-stroke range and 0.1 mm resolution tracks the actual fatigue displacement cycle-by-cycle, independent of mechanical wear.
A sudden drop in peak force automatically triggers test stop and records the exact failure cycle count — no operator intervention required.
What's Included
Product Range
50 kgf – 100,000 kgf
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100 kN – 200 kN
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Bench-top, portable
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Clutch applications
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Who Uses Our Spring Fatigue Testers?
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After Sales
On-site and in-house calibration of testing machines and sensors
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Application engineering, test method development, and lab planning
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Safe disassembly, transport, and re-commissioning of testing machines
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Modernise legacy or imported test rigs with new controls and sensors
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Annual maintenance contracts (AMC) for all testing machines
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Tell us your spring dimensions, load range, and required cycle count — we'll recommend the right FTM model and quote quickly.
Trade Shows & Exhibitions
Upcoming Events 2026Tire Technology Expo
Deutsche Messe, Hannover, Germany
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TyreXpo Asia Bangkok
BITEC, Bangkok, Thailand
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Automotive Engineering Exposition 2026 Yokohama
PACIFICO Yokohama, Japan
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Automechanika Dubai
Dubai Exhibition Centre, Expo City Dubai
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