Breaking TestHMPE3mm HMPE 3 MM WITH SHEATH: 2.13 kN — weaker than expected An HMPE core with a polyester sheath sounds like a strong combination. The test results tell a...
Otto Tromm |
Breaking TestSisal8mm BREAKING STRENGTH 8 MM SISAL ROPE 4.17 kN — well below average Sisal looks strong. The test results tell a different story. Five tensile tests, one conclusion: this...
Otto Tromm |
Breaking TestPolypropylene8mm BREAKING STRENGTH 8 MM SHEET LINE 7.42 kN measured Polypropylene, sheath-core construction. Five measurements, remarkably consistent results. Here are the figures. 7.42 kN Average breaking strength 757.0 kg...
Otto Tromm |
Break TestNylon8mm BREAKING STRENGTH 8 MM NYLON WITH CORE 12.57 kN — strongest 8 mm in the test A nylon rope with a braided sheath and a twisted core: two...
Otto Tromm |
Editor: Otto Tromm | Test date: 4 Jun Old rope gets thrown away — that is the assumption. But what if a length of polypropylene rope that is 10 years...
Otto Tromm |
Editor: Otto Tromm | Test date: 3 Jun Introduction What happens when a low-cost polypropylene rope that has been stored at the back of a warehouse for years is put...
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Editor: Otto Tromm | Publication date: 2026-05-28 When pulling cables through narrow and often curved conduits, cable pulling teams must work in sync — applying high, controlled force throughout. Any...
Otto Tromm |
On exactly 5 May, the endurance test that is set to run for 5 years was started. That said — after 4 weeks, it was impossible not to go and...
Otto Tromm |
Editor: Otto Tromm | Publication Date: 2026-05-21 Are you looking for a universal rope with high breaking strength that also offers excellent grip? This product is designed for professionals who...
Otto Tromm |
Editor: Otto Tromm | Test Date: 19-5-2026 Introduction What makes the breaking strength of 10 mm hemp twisted rope fascinating? And what surprises does the test reveal? In short: What...
Otto Tromm |
Editor: Otto Tromm | Test date: 18-5-2026 We found a rope from 2016 in the warehouse. It has always been stored dry and fairly well protected from UV light in...
Otto Tromm |
Editor: Otto Tromm | Test date: 14-5-2026 Hemp is one of the oldest fibres used for rope — but how strong is it in 2025, compared to modern synthetic alternatives?...
Otto Tromm |
Editor: Otto Tromm | Test date: 12-5-2026 Polypropylene braided rope without core is known as light, low-cost, and functional — but how does it actually perform under maximum load? The...
Otto Tromm |