Roller curve conveyors: Innovative details make the decisive difference!

The laws of physics cannot be outwitted: From speeds of around 0.8 m/s, the centrifugal force becomes greater than the frictional force, causing the material being conveyed to move outwards in roller curve conveyors. The material being conveyed then exerts a counter force on the tapered elements of the roller in the direction of the inner radius of the curve. If this happens over an extended period of time, there is a risk that the tapered elements on the roller's steel pipe will move. You can find out how our engineers solved this problem here.

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Series 3500KXO

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Application area

Driven unit handling conveying in the curve section, e.g. of cardboards, containers or tires. Suitable for implementing gravity or driven roller curves. Tight curve radii are possible if tapered elements with a conicity of 2.2° are used.

High reliability

This roller series has been proven millions of times. Contrary to conventional curve rollers, the elements are secured against shifting. This allows the roller to offer a very high degree of functional dependability.

Low-noise

The use of polyamide drive heads results in very quiet running.

Good running properties

The tapered elements made of polypropylene distinguish themselves with a low net weight so that good startup properties can be achieved.

Robust construction

Robust tapered elements are abrasion-proof, noise-reducing, impact-resistant and excel through a high weather-resistance.

Variants

Depending on the requirement, the curve rollers can be supplied with drive heads for PolyVee belts, round belts or chains.

  • Round belt drive head
    With the round belt head, the drive section is separated from the conveying section, so that materials cannot be shifted due to batching belts. Since the drive head has a higher friction because of grooves in the metal tube, the result is a higher conveyance of the round belts. If the round belts should slip because of the application, then the wear of the belts on a round belt drive head is higher.

  • PolyVee drive head
    Compared with a round belt, the use of a 2-rib belt allows transferring approximately twice the torque. Conveying and drive technology are physically separated. A groove must remain clear between two belts so that the belts cannot touch.

Lubrication options for ball bearing

Greased for an ambient temperature from –5 to +40 °C (standard)

Oiled for an ambient temperature from –28 to +20 °C

Shafts

The following are available in addition to the variants listed in the load capacity tables:

  • With spring on both sides

  • With variable length

  • Different design of both shaft ends

Drives

The following are available in addition to the variants listed in the load capacity tables:

  • The drive heads for round and PolyVee belt can be designed with an additional fixation for temperature-sensitive applications (freezer applications). This fixation is located inside the roller and creates a form-fit torque transfer between tube and drive head. Hence, damages to materials or collecting adhesive tape at the outside of interfering corners is being avoided.