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Related Resources:
  • Telescopic Lift Column V2
  • Small Gantry Enclosed Timing Belt Actuator
  • Enclosed Timing Belt Actuator V2
  • Pallet Chain Conveyor
  • Timing Belt Conveyor
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Design guide Updated: Wednesday, August 9th 2023

HD Roller Conveyor

Contents

  • Overview
  • Applications
    • Pallet Conveying
    • Package conveying
    • Package picking
    • Conveyor Turntable
  • HD Conveyor Tech Specs
    • Determining number of driven segments
  • Assembly instructions
    • Step 1: Install the mounting brackets
    • Step 2: Install the first two rollers
    • Step 3: Install the motor mount
    • Step 4: Install the drive belt
    • Step 5: Tension the drive belt
    • Step 6: Install the motor cover
    • Step 7: Install additional rollers
    • Step 8: Install the remaining rollers
    • Step 9: Attach covers
    • Step 10: Attach end caps (optional)
  • Maintenance

Overview

Vention’s HD conveyors are driven by three-rib v-belts, which can transmit over 200% more torque than a typical o-ring belt.

Conveyor modularity, length and width

Perfect for transporting pallets and oversized items, the HD roller conveyor is available in widths of 855 mm and 1395 mm, and lengths that vary by 450 mm increments.

Applications

Pallet- and package-conveying are the two most popular applications. Sensors and logic can be easily added to automate the conveyor with MachineMotion, and allows you to take full advantage of Vention’s modular ecosystem to customize your conveyor.

Pallet Conveying

Pallet conveying application.

With a maximum supported item width of 1344 mm (52.9 in.), the HD conveyor system can  easily handle standard 48 inch-wide pallets. Note that for maximum load capacity, the pallet must be in contact with as many rollers as possible.

Pallet Conveyor Specifications Roller width 675 mm Roller width 855 mm Roller width 1395 mm
Suggested pallet width 610 mm (24 in) 765 mm (30 in) 1215 mm (48 in)
Pallet type Wood or Plastic Wood or Plastic Wood or Plastic
Max pallet weight (48 in length) 440 kg 440 kg 440 kg
Suggested motor size 100 mm Nema 34 100 mm Nema 34 100 mm Nema 34

Package conveying

Packaging conveying application.

The HD roller conveyor can also transport items or packages directly on the rollers, without the need for a pallet.

Before choosing which to use rollers to convey items directly, consider the following factors:

  1. Rigidity. The conveyed items must be rigid. Flexible items will get caught between the rollers, which may cause the package to stall.
  2. Bottom surface. Items must be flat on the bottom to maintain optimal contact with the rollers.
  3. Length. Each item must be at least 180 mm long, in order to be in contact with at least two rollers at all times.

If your items don’t meet these conditions, you may want to consider our line of belt conveyors instead.

Package Conveyor Specifications Roller width 675 mm Roller width 855 mm Roller width 1395 mm
Max item width (25 mm clearance) 600 mm 780 mm 1320 mm
Item material Stiff plastic and cardboard, wood, metal Stiff plastic and cardboard, wood, metal Stiff plastic and cardboard, wood, metal
Max item weight per roller 40 kg (88 lb) 40 kg (88 lb) 40 kg (88 lb)

Package picking

With the addition of the low side series, the HD conveyor can be used to deliver packages to a cartesian or robotic palletizer. The low side allows side box grippers and bag grippers fingers to fit between rollers, allowing larger boxes to be picked with ease. Assembly of this model is identical to the standard conveyor except the non-drive side is composed of the single low side bracket. 

Packaging picking application.

Conveyor Turntable

Conveyor turntables can be easily designed and modified to suit your needs. Turntables are used to change the direction of conveyed packages, merge two lines of conveyors or direct their flow. They are powered by servo motors, which offer the ability to position the turntable within nine arc minutes. Two pre-made designs are available, one for 855 mm width and one for 1395 mm width. Both can be easily modified to suit length requirements, sensor mounting or installed height.

Build your 855 mm wide turntable

Build your 1395 mm wide turntable
Turntable Specs Roller width 855 mm Roller width 1395 mm
Max Pallet Length
Vention official design
900 mm 1350 mm
Turning Speed 20 Degrees per second 20 Degrees per second
Capacity 440 kg 440 kg

HD Conveyor Tech Specs

Nominal width 675 mm 855 mm 1395mm
Usable roller width 624 mm 804 mm 1344 mm
Length 450 mm modular units 450 mm modular units 450 mm modular units
Max capacity per roller 40 kg 40 kg 40 kg
Roller diameter 50 mm 50 mm 50 mm
Roller material Zinc-plated steel Zinc-plated steel Zinc-plated steel
Belt type 3PJ 3PJ 3PJ
Belt efficiency 93% 93% 93%
Max rollers per motor* 60 60 60
Mechanical gain 123.3 mm/revolution 123.3 mm/revolution 123.3 mm/revolution
Max linear speed 2000 mm/s 2000 mm/s 2000 mm/s

*Assuming a rigid 25 kg payload, this is the max number of rollers that can be placed on either side of the motor.

Determining number of driven segments

To determine the number of motors for a run of conveyors, first determine the maximum permissible load for your pallet using the formula below:

The following table will help determine the number of non-driven segments between driven ones.

Payload Number of non-driven segments between driven ones
0 - 40 kg 12
40 - 80 kg 10
80 - 120 kg 8
120 - 160 kg 6
160 - 200 kg 5
200 - 280 kg 4
280 - 380 kg 3
380 - 440 kg 2
440 - 500 kg 1

Assembly instructions

Before assembling the conveyor modules, ensure that the frame designed to hold them can bear the load of both the conveyor and the items being conveyed.
After the frame is built and leveled, you can proceed with assembling the conveyor segments.

Step 1: Install the mounting brackets

Attach each bracket with three M8 screws, using a 5 mm Allen key, and two cable mounts. (The cable tie mounts let you internally route cabling and tubing.) 
Repeat for each conveyor segment.

Step 1: mounting bracket installation.

Step 2: Install the first two rollers

The easiest place to start installing rollers is with the first motor segment .

  1. Starting at that segment, slip the belts onto the rollers, as shown.
  2. Push the hex shaft into one side of the frame.
  3. Depress the hex shaft and slide it into the second mounting bracket.
  4. Repeat for the second roller.

Step 2: first roller installation.

Step 3: Install the motor mount

Install the motor mount using four M6 screws and spacers, and tighten with a 5 mm Allen key. 
Don’t worry about the exact placement of the belts, but make sure:

  1. The belts are still in place.
  2. The spacers go through the motor belt and one of the roller belts.

Step 3: motor mount installation.

Step 4: Install the drive belt

First, make sure the motor mount is at its highest position; this will help when installing the belt. 
To move the mount up:

  • Loosen the four M6 bolts (1) and two M8 bolts on the bottom of the assembly. Once loose, the motor mount should slide up and down freely.

To install the drive belt:

  • Wrap the motor drive belt around the pulley. (It should sit flat once on the pulley.
  • Check the motor drive belt at each roller, and make sure it looks as shown in the figure below (2).

Step 4: drive belts installation.

Step 5: Tension the drive belt

Start tightening the two M8 bolts found on the bottom of the assembly (1), but leave the four M6 screws loose (2). 
Tighten the M8 bolts evenly by turning them two revolutions at a time. Keep tightening until proper tension is achieved. 
To determine tension:

  • Press on the belt in the middle of the span and apply about 1–2 kg of force. The belt should deflect roughly 10–20 mm. If it deflects much more than this, tighten the M8 screws.

After proper tension is achieved, tighten the four M6 screws.

Note: If this step is performed after the installation of an AC Motor, please ensure that the motor support bolts attaching the motor to the extrusion frame are loose to allow for unimpeded tensioning adjustment.

Step 5: drive belt tensioning.

Step 6: Install the motor cover

Fasten the motor cover with four M3 screws and a 2 mm Allen key.

Step 6: motor cover install.

Step 7: Install additional rollers

To add the rest of the rollers:

  1. First install the hex shaft on the non-driven side of the frame.
  2. Add the two belts and depress the hex shaft.
    • Make sure the belt is in the right grooves on the roller. There should always be at least one groove between belts.
  3. Slide the hex shaft into place on the frame.
    • The belt will be tight; it takes about 10 kg of force to move it into place. It’s easiest to pull the roller towards you.

Step 7: additional roller installation.

Step 8: Install the remaining rollers

If there are more powered sections, install the drive belt (as described in step 2). Install the second motor mount, refer to steps 3–6 for installation.
Otherwise, repeat step 7 for the remaining rollers and belts.

Step 9: Attach covers

Install the covers as shown. Attach each cover with four flathead M6 bolts, and tighten with a 4 mm Allen key. Repeat for each conveyor segment.

Step 9: attaching covers.

Step 10: Attach end caps (optional)

If you have purchased end caps, attach one at each end. Fasten each end cap with two flathead M3 bolts, and tighten with a 2.5 mm Allen key.

Step 10: attaching end caps.

Maintenance

O-ring and v-belt rollers are low-maintenance, and all bearings are sealed and greased for life. All you need to do is routinely clean the rollers and check for wear.

Monthly

  • Clean rollers
  • Check for unusual noises
  • Check motor belt tension
  • Check roller belt tension
  • Check belt wear

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