Tianhe Conveying Machine Co.,Ltd · Wuxi Jiangsu China
KS KSM Series

Pipe Mount Ball Transfer Unit KSM-12

The KSM-12 is a pipe mount ball transfer unit with a 12 mm steel ball, rated for 25 kg working load and 30 kg maximum load. It mounts onto a 22 mm diameter pipe using two screw holes in the housing, allowing a flat, smooth object like a tray to be moved and rotated in any direction by hand. The unit weighs 35 g and is available with a carbon steel or stainless steel case and a steel ball.

Pipe mount ball transfer unit KSM-12 mounted on a 22 mm diameter pipe with two screw holes in the housing
Pipe mount ball transfer unit KSM-12 mounted on a 22 mm diameter pipe with two screw holes in the housing

Product Overview

The KSM-12 is a pipe mount ball transfer unit with a 12 mm steel ball, rated for 25 kg working load and 30 kg maximum load. It mounts onto a 22 mm diameter pipe using two screw holes in the housing, allowing a flat, smooth object like a tray to be moved and rotated in any direction by hand. The unit weighs 35 g and is available with a carbon steel or stainless steel case and a steel ball.

Part of the KS KSM Series range, used in Warehouse and Distribution Centres.

Key Benefits

  • Carries 25 kg per unit in normal service and 30 kg at peak load
  • Pipe mount fits over a 22 mm diameter pipe with two screw holes for secure attachment
  • 12 mm steel ball provides consistent rolling motion under light to moderate load
  • Carbon steel case for general industrial use and stainless steel case for wet or corrosive environments
  • Low weight of 35 g reduces deck load and shipping cost

Application Scenarios

  • Transfer points on a conveyor line where trays need to be rotated or repositioned by hand
  • Feeding systems in packaging machinery where flat items are moved between stations
  • Processing tables where a tray is turned or aligned during assembly or inspection
  • Curved work surfaces on band saws or router tables requiring omnidirectional movement
  • Auxiliary equipment on production lines where a light load must be shifted without powered drive

Who It Is For

  • Conveyor system integrators building low-load transfer points into a line
  • Packaging machinery builders needing omnidirectional movement for trays
  • Industrial equipment makers integrating ball transfer units into worktables
  • Production line designers requiring a compact, low-weight transfer solution
  • Industrial distributors stocking ball transfer units by load and mounting type

Problems It Solves

  • Trays or flat items that jam when pushed across a fixed or unidirectional surface
  • Transfer points where product must change direction without a powered diverter
  • Light loads that are difficult to rotate or align by hand on a rigid deck
  • Need for a compact, low-weight unit that fits onto a standard 22 mm pipe
  • Requirement for a ball transfer unit that can be securely fastened with screws

Technical Features

  • 12 mm steel ball provides consistent rolling motion in all directions
  • Pipe mount design fits over a 22 mm diameter pipe with two screw holes
  • Housing made from carbon steel, galvanized steel, chrome plated steel, or stainless steel
  • Steel ball ensures durability under repeated light load cycles
  • Compact dimensions of 22 mm diameter by 17 mm height for tight space applications

Materials

  • Carbon steel case for general industrial environments
  • Galvanized steel case for improved corrosion resistance in damp areas
  • Chrome plated steel case for a smoother surface and better wear resistance
  • Stainless steel (SUS304) case for wet, washdown or corrosive environments
  • Steel ball for consistent rolling under light to moderate load

Quality Control

  • Load capacity verified against the 25 kg working load before packing
  • Ball rotation checked by hand for free movement in all directions
  • Material grade confirmed against the case and ball option ordered
  • Mounting holes inspected for correct alignment and thread integrity
  • Unit weight verified at 35 g for shipping and deck load calculations

Customization Options

  • Case material selected between carbon steel, galvanized steel, chrome plated steel, and stainless steel (SUS304)
  • Ball material fixed as steel in this model, no alternative ball material available
  • Other KSM Series models available for different load ratings or mounting types

Use Guide

  • Ensure the pipe diameter is 22 mm to match the unit's mounting size
  • Divide the total load by the number of units in contact to stay within the 25 kg per unit rating
  • Keep peak and impact loading below the 30 kg maximum load figure
  • Use only on flat, smooth surfaces such as trays or metal sheets
  • Avoid using on uneven, soft, or flexible surfaces like cloth-wrapped items

Specifications

Model NoKSM-12
MountingPipe mount
Mount Diameter22 mm
Ball Diameter12 mm
Load Capacity25 kg
Max Load Capacity30 kg
Weight35 g
Ball MaterialSteel
Case MaterialCarbon steel, galvanized steel, chrome plated steel, stainless steel (SUS304)

Manufacturing Process

Step 1

Machining of the case and mounting holes

Step 2

Assembly of the steel ball and support components

Step 3

Finishing of the case surface (galvanizing, chrome plating, or stainless steel treatment)

Step 4

Final inspection of ball rotation and mounting hole alignment

Step 5

Packing for shipping and storage

Compared With Other Options

Flange mount ball transfer unitsPipe mount fits over a 22 mm pipe and is secured with screws, while a flange mount bolts from above and requires a deck plate
Press fit ball transfer unitsPipe mount allows removal and replacement without damaging the pipe, while a press fit unit is harder to service
Higher load rated unitsThe KSM-12 suits 25 kg loads, so heavier applications require a larger model with higher capacity

Pipe Mount Ball Transfer Unit KSM-12 Questions

What load can one KSM-12 ball transfer unit carry?

The rated load capacity is 25 kg per unit and the maximum load capacity is 30 kg.

How is the KSM-12 mounted?

It is a pipe mount unit, so it fits over a 22 mm diameter pipe and is secured with two screws in the housing.

Which case material should I choose?

Carbon steel for general use, galvanized or chrome plated for better corrosion resistance, stainless steel (SUS304) for wet or washdown environments.

Is a stainless steel version available?

Yes, the case can be supplied in stainless steel (SUS304).

How much does the unit weigh?

Each KSM-12 weighs 35 g, which is used for deck load and shipping calculations.

Can I get other load ratings in the same series?

Yes, the KSM Series includes other models with different load ratings and mounting types.

Get a Price for Pipe Mount Ball Transfer Unit KSM-12

Send the quantity and any material or surface option you need, and a quotation comes back against this model number.