Chain Proof Testing Machines
  • Chain Proof Testing Machines
Chain Proof Testing Machines

Chain Proof Testing Machines

Main Function：

Polywin CETT series hydraulic chain proof testing machines consist of 3 models: CETT-10 (4~10mm), CETT-16 (10~16mm), CETT-20 (16~20mm), specially designed for standard proof load test (manufacturing proof force testing MPF) of finished industrial chain as per EN818 & ISO norms. Horizontal long-frame structure with max single test stroke up to 6m; working force ranges from 110KN~350KN, fast testing cycle from 35S~50S per 6m chain length, core for factory finished chain quality control.

Long 6m single stroke reduces repeated clamping operation for long chain rolls; stable hydraulic system provides constant proof tension to verify link integrity without over-elastic deformation; three specs fully cover 4~20mm full-size chain, perfectly matched with Polywin bending, welding, calibration & heat treatment machines to form full-chain-turnkey production & QC line.

Realize 100% in-house proof load inspection for finished lifting chain, eliminate unqualified products before delivery, meet international safety certification requirement and lower customer after-sales rejection risk.

CE approved, widely equipped by global G80/G100 chain manufacturers.

Key Technical Features

Professional proof load test for industrial chain quality inspection

High-precision tension control to meet international testing standards

Multiple models covering 4mm to 20mm chain wire diameter

Stable hydraulic drive system with adjustable testing speed

Long testing stroke, suitable for various chain lengths

Compact structure, stable operation and easy maintenance

CE certified, compliant with industrial safety regulations

Application Scope

These CETT chain proof testing machines are widely used for quality inspection of G80 and G100 high-strength chains.

1.Main Applicable Chains: Lifting chains, electric hoist chains, mining chains, anchor chains and other heavy-duty industrial link chains.

2.Usage Scenarios: Essential testing equipment for chain manufacturers, used after chain welding, calibration and heat treatment to guarantee product safety and performance.

Products details

model

parameters

 

CETT-10

 

CETT-16

 

CETT-20

Size range (mm)

4-10mm

10-16mm

16-20mm

Max single stroke length (M)

6.0

6.0

6.0

Max tension value (mm)

220

300

500

System max thrust (KN)

220

500

500

System working force(KN)

110

250

350

Motor power(KW)

6.0

7.0

12.7

Fastest speed of single stroke

35S/6 M

45S/6 M

50S/6 M

Dimension (LxWxH : M)

8.5×1.0×1.8

8.5×1.1×1.8

9.6×1.1×1.84

Weight (T)

1.5

2.5

3.5
Frequently Asked Questions About Chain Proof Testing Machine:

1. Q: What wire sizes do three CETT models cover?

    A: CETT-10 for 4~10mm; CETT-16 for10~16mm; CETT-20 for16~20mm high tensile industrial chain.

2. Q: What's core usage of proof load test?

    A: Apply regulated proof tension to check chain structural integrity, ensure finished chain meets EN818/ISO safety standard before factory shipment.

3. Q: What is max single test length per cycle?

    A: All three models support maximum 6-meter single stroke testing for continuous long chain.

4. Q: Can CETT match your full chain making line?

    A: Fully compatible with Polywin chain bender, welder, calibration and heat treatment machines to complete full production + final QC flow.

5. Q: When will chains do proof inspection on this tester?

   A: Normally after heat treatment and after 2nd calibration process. 

6. Q: Which chains is this tester suitable for?

    A: Mainly for G80, G100 lifting chains, mining chains and anchor chains.

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