SUPER‑SCREW®* Evolution

Splices for heavy duty belts

The new generation

To always improve innovation, MLT’s R&D teams have gone beyond the limits of the SUPER-SCREW®* Original to create a brand new generation of flexible screw joints, even more flexible and resistant: The SUPER-SCREW®* Evolution.

*Registered trademark, all rights reserved


  • More flexible, more resistant
  • Perfect integration into the belt
  • Reduce downtime
  • Optimizes your productivity
  • Easy and quick to install (1 to 2 persons)
  • Self-installation, low investment
  • Leak-proof and flexible
  • Compatible with small pulley diameter
  • Compatible with conveyor scrapers


Surface mine

Cement plant



Food industry

Automotive industry

Brickwork and tile factorie

Cardboard and paper mill


Construction and concrete plant

Fertilizer and chemical

Foundry and steel mill

Wood industry



Sugar factory

Recycling plant

Belt thickness before skiving mm 3+1.5 4+1.5 5+1.5 4+2 5+3 6+2 6+3 8+3
inch 1/8’’ +1/16’’ 5/32’’ +1/16’’ 3/16’’ +1/16’’ 5/32’’ +1/16’ 3/16’’ +1/8’’ 1/4’’ +1/16’’ 1/4’’ +1/8’’ 5/16’’ +1/8’’
Skiving blades (mm) 3.5   4.5   4.5   4.5 2,5 4.5 3,5 6.5 2,5 6.5 3,5 8.5 3,5
Type* Type of belt Belt tension Operating tension Min pulley Ø, mm Screw dimensions
N/mm PIW
35 250/2 250/3 350 200 160 5x10 - 5x12
315/2 315/3
50*** 400/2 400/3 630 360 180 5x12 - 5x14
500/3 500/4
630/2 630/3
63 630/2 630/3 200   5x14 - 5x16
80 800/2 800/3 800 450 250

Spacers: one-size spacer
*Our splicing solutions have been engineered for normal applications. For tough and abrasive environments, we encourage you to select an upper Super-Screw®* size (please check specifications before)


    SUPER-SCREW® Original Anti-Abrasion Flexible Splice

    SUPER-SCREW®* Evolution, designed with a high quality of rubber abrasion resistant 50 mm³, one of the most resistant, which answers the majority of your applications.

    SUPER-SCREW® Original Retardant Coating

    SUPER-SCREW®* Evolution can be installed on your heat retardant belt and will withstand temperatures from 170°C (338°F) to 200°C (392°F) peak.

    SUPER-SCREW® splice Fire retardant

    SUPER-SCREW®* Evolution, manufactured with fire-resistant surface ISO 340 and ISO 284, ensures your security in silos and underground mines.

    SUPER-SCREW® heat resistant splice for heavy belts

    SUPER-SCREW®* Evolution can be installed in systems with temperatures up to 150°C (302°F) continuous and 170°C (338°F) peak.

    SUPER-SCREW® splice with oil resistant

    SUPER-SCREW®* Evolution is also available for oil resistant surface which resists oil and solvent.

    SUPER-SCREW® very low temperature resistant

    SUPER-SCREW®* Evolution resists even at low temperatures until -30°C (-22°F) (-50°C (-58°F) on demand).


    SUPER-SCREW®* Evolution, manufactured for sliding bed / friction bottom conveyor belts, is available in the SUPER-SCREW®* Evolution 35 and 63 with abrasion resistant or oil resistant rubber with steel inserts, in either 5 m or 25 m rolls.

Screw and insert for SUPER-SCREW®

Types of steel for screws and inserts available



Steel screws and inserts
High resistance, it’s the perfect choice for most applications : quarries, cement plants, mines, etc.

Stainless steel screws and inserts - 316 non-magnetic
For resistance in corrosive and saline applications : gold mines, phosphate mines, sorting center, fertilizer plant, recycling facilities and salt handling, etc.

Splice SUPER-SCREW® Evolution


  • In roll of 3 (stainless steel only) or 5 (steel only)**, 10 and 25 m
  • In kit, pre-assembled and cut to lenght, for belt widhts of 800, 1000, 1200, 1400 mm
  • White food grade version available in 2000 mm lenght only


  • Installation tools
  • Customization*

*Reserved for partners contracts
**3 or 5 m depending on the quality of the coating, please consult us.

Training of certified installers

Simple tools to help you​


Installation template kit (included)​

  • Screw selection tool​
  • Super-Screw®* Installation template guide​

Cordless tool kit (17 elements) (option)​

  • Cordless belt skiver and accessories​
  • Cordless powered driver and accessories​
  • PPE

Certified Installer Training (option)​

  • An official training program conducted by MLT professionals​
  • Theoretical + practical​

Our success

Who better than you to explain how MLT contributes to your success?

Many market players trust us : discover their story.

MLT Ronchi SA

Ronchi SA

Ronchi SA has specialized in the processing and distribution of stone materials for over a century.

Their production facilities are located at La Ballastière, on the west side of the town of Gland, Switzerland.

Main product used


  • 100

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