Serial and type
Enter the ladder's serial number and choose the Summit type from the list.
Summit Ladders | test rig
Crest strains one step, then prints the certificate.
Crest stands for Calibrated Record and Evaluation for Summit Tension. Each ladder has a serial number. Choose the ladder type and the step under test. Crest already knows the set force for that step, drives the rig up to that force, and keeps the record for the printed certificate.
Step and limit
Pick the rung or platform. The preset limit is the load Crest will strain to, and for how long.
Strain and hold
The winch pulls until the strain gauge in the rope reaches that limit, then holds. The gauge cable runs to the board in the same enclosure as the controller. Photographs attach to the test.
Certificate
A passed test gets a PDF certificate with the serial, the step, the load, and the photographs.
Ladders Crest will test
Preset loads
Professional
A-frame 4 step
A-frame, 3 steps plus cap. Crest only tests the steps Franco named: step 1 and step 2.
Professional
A-frame 6 step
A-frame, 5 steps plus cap. Crest only tests the steps Franco named: step 1 and step 4.
Professional
A-frame 8 step
A-frame, 7 steps plus cap. Crest only tests the steps Franco named: step 1 and step 6.
Professional
A-frame 10 step
A-frame, 9 steps plus cap. Crest only tests the steps Franco named: step 1 and step 8.
Professional
6m Extension ladder
Extension ladder, 6 m, 22 steps. Crest only tests the steps Franco named: step 10, 11, 12 and 13.
Professional
7.8m Extension ladder
Extension ladder, 7.8 m, 28 steps. Crest only tests the steps Franco named: step 13, 14, 15 and 16.
Professional
9m Extension ladder
Extension ladder, 9 m, 32 steps. Crest only tests the steps Franco named: step 15, 16, 17 and 18.
Ladder photographs are from Summit Ladders, the samples this rig is built to test. Summit manufactures to SANS 50131-1 (EN 131-1).