NOROTEC® MT 91

Hoist rope

NOROTEC® MT 91 is a rotation resistant high performance hoist rope featuring an innovative design, high breaking forces, high radial stability and low elongation.

Specifications

  • Breaking force: +++++
  • Bending fatigue behavior: ++++
  • Radial stability: +++++
  • Low torsional tendency: +++++
  • Low elongation: ++++
  • Multilayer spooling: +++++ 
  • Ordinary lay or Lang’s lay, right or left lay, galvanized and bright
  • Constructions:
    • 20–30 mm: 16 x K6–EPIWRC (K)
    • 32–42 mm: 16 x K7–EPIWRC (K)
    • 44–70 mm: 16 x K17F–EPIWRC (K)
  • Certifications: DIN 21254 and EN12385-6; other certificates gladly provided on request
  • SUPERFILL®
  • PLASTFILL®

NOROTEC® MT 91 features a revolutionary design and is manufactured of premium materials in a perfectly harmonized production process. It combines all characteristics that a rotation resistant high performance hoist rope needs for your use. Being very versatile, it excels particularly as hoist rope in the following applications:

  • Drum applications in single and multilayer spooling
  • Friction hoists
  • Shaft sinking projects (Galloway, bucket/cage)


Our NOROTEC® MT 91 can be adapted individually to your respective requirements and applications. By adjusting the rope accordingly, the design can be optimally balanced in terms of wear, service life, breaking load, etc.


The hoist rope NOROTEC® MT 91 is characterized by the following benefits:

  • Outer strands compacted by means of SUPERFILL® technology making the rope extremely resistant to wear and plastic deformation
  • Excellent spooling characteristics due to highest dimensional stability under lateral pressure - even in multilayer spooling use
  • In spite of the compact rope design, the rope is very flexible and durable in terms of bending cycles.
  • Extremely high resistance to external environmental influences and the ingress of dirt due to PLASTFILL® insert resulting in a perfect lubrication of the inner rope
  • Supreme operational safety due to high breaking forces and resistance to torsion
  • Long service life even in case of shock loads due to the 4-strand design of the inner rope
  • Rotation resistance making the rope suited for use in very deep hoisting shafts
  • Low rope elongation
  • Rotation resistant rope construction facilitating installation and ensuring protection of the drive sheave linings of friction hoists.
Diameter
[mm]
Diameter
[inch]
Weight
[kg/m]
Weight
[lbs/ft]
Minimum breaking force at a tensile strength of 1770 N/mm²
[kN]
Minimum breaking force at a tensile strength of 1770 N/mm²
[lbs]
Minimum breaking force at a tensile strength of 1960 N/mm²
[kN]
Minimum breaking force at a tensile strength of 1960 N/mm²
[lbs]
20 2.03 1.37 335 75,226 370 83,238
21 2.22 1.49 369 83,015 409 91,918
22 7/8 2.46 1.65 404 90,805 447 100,598
24 2.88 1.93 478 107,497 530 119,070
25 1.00 3.09 2.07 532 119,515 589 132,424
26 3.41 2.29 561 126,192 621 139,546
27 3.67 2.46 603 135,540 667 150,006
28 3.96 2.66 648 145,777 718 161,357
28.57 1 1/8 4.06 2.73 661 148,671 737 165,585
29 4.18 2.81 694 156,015 769 172,930
30 4.52 3.04 742 166,698 822 184,726
32 1 1/4 5.14 3.45 844 189,844 935 210,097
34 5.78 3.88 948 213,213 1,050 236,137
36 6.51 4.37 1,061 238,585 1,175 264,180
38 1 1/2 7.20 4.83 1,225 275,308 1,355 304,686
40 7.97 5.35 1,304 293,113 1,443 324,494
42 8.79 5.90 1,437 323,158 1,592 357,878
44.45 1 3/4 9.29 6.23 1,625 365,222 1,799 404,393
46 10.04 6.73 1,740 391,262 1,940 436,219
48 10.90 7.31 1,895 425,981 2,099 471,606
50 12.15 8.15 2,055 462,036 2,276 511,667
50.80 2 12.72 8.54 2,122 476,948 2,350 528,359
52 13.34 8.95 2,224 499,872 2,462 553,509
54 2 1/8 14.19 9.52 2,398 539,042 2,655 596,908
56 14.97 10.05 2,579 579,771 2,855 641,866
58 16.46 11.05 2,766 621,835 3,063 688,603
60 2 3/8 17.56 11.78 2,960 665,457 3,278 736,899
62 18.52 12.43 3,161 710,637 3,501 786,975
64 20.02 13.43 3,368 757,152 3,729 838,387
66 20.71 13.90 3,582 805,225 3,966 891,579
68 21.99 14.75 3,803 854,856 4,210 946,551
70 23.43 15.72 4,029 905,823 4,462 1,003,082
Typing errors and technical changes reserved. The data are typical values without warranty or guarantee. For questions we are always at your disposal.