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

Spring Loaded Press Mount Ball Transfer Unit KSH-20

The KSH-20 is a spring loaded press mount ball transfer unit with a 19.05 mm diameter steel ball, rated for 70 kg working load and 100 kg maximum load. It is designed to be pressed into a 38 mm diameter hole in a deck plate, allowing flat, smooth objects like trays to be moved and rotated in any direction by hand. The unit weighs 280 g and is available with a steel, galvanized steel, chrome plated steel or stainless steel case.

Spring loaded press mount ball transfer unit KSH-20 with steel ball and steel case, pressed into a 38 mm hole
Spring loaded press mount ball transfer unit KSH-20 with steel ball and steel case, pressed into a 38 mm hole

Product Overview

The KSH-20 is a spring loaded press mount ball transfer unit with a 19.05 mm diameter steel ball, rated for 70 kg working load and 100 kg maximum load. It is designed to be pressed into a 38 mm diameter hole in a deck plate, allowing flat, smooth objects like trays to be moved and rotated in any direction by hand. The unit weighs 280 g and is available with a steel, galvanized steel, chrome plated steel or stainless steel case.

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

Key Benefits

  • Carries 70 kg per unit in normal service and 100 kg at peak load
  • Spring loaded design maintains consistent ball contact under load and compensates for minor deck surface variations
  • Press mount fits into a 38 mm hole so no additional flange or bolt holes are needed
  • Steel ball and case options suit general industrial environments
  • Stainless steel case option for wet or corrosive areas

Application Scenarios

  • Transfer points between two conveyor lines running at right angles where a tray must be rotated by hand
  • Assembly line stations where a fixture needs to be repositioned in multiple directions
  • Packaging machinery where flat product trays are moved across a work surface
  • Processing tables where a flat component is rotated for secondary operations
  • Feeding systems where a flat object is aligned and repositioned without powered guidance

Who It Is For

  • Conveyor system integrators building transfer and rotation points into a line
  • Material handling equipment builders constructing worktables and processing decks
  • Industrial distributors stocking ball transfer units by load rating and mounting type
  • Assembly line and production line builders needing consistent movement points

Problems It Solves

  • Flat objects that stick or drag when pushed across a fixed deck plate
  • Transfer points where product must change direction without a powered diverter
  • Operators struggling to reposition a load by hand due to high friction or misalignment
  • Decks with slight warping or uneven surfaces where ball contact is lost
  • Need for a compact, low-profile transfer unit that does not require bolt holes

Technical Features

  • Spring loaded mechanism maintains ball contact under load and compensates for deck surface irregularities
  • Press mount design fits into a 38 mm diameter hole without additional flange or bolts
  • 19.05 mm diameter steel ball allows smooth omnidirectional movement of flat objects
  • Case available in carbon steel, galvanized steel, chrome plated steel or stainless steel (SUS304)
  • Unit weight of 280 g for deck load and shipping calculations

Materials

  • Carbon steel ball and case for general industrial use
  • Galvanized steel case for improved corrosion resistance in moderate environments
  • Chrome plated steel case for wear resistance and appearance
  • Stainless steel (SUS304) case for wet, washdown or corrosive areas

Quality Control

  • Load capacity verified against the 70 kg rating before packing
  • Ball rotation checked by hand for free movement in all directions
  • Material grade confirmed against the case option ordered

Customization Options

  • Case material selected between carbon steel, galvanized steel, chrome plated steel and stainless steel (SUS304)
  • Ball material is steel only, not available in nylon or stainless steel
  • Other KSH Series load ratings available where 70 kg is not the right size

Use Guide

  • Divide the load by the number of units in contact to ensure the 70 kg per unit rating is not exceeded
  • Keep peak and impact loading below the 100 kg maximum load figure
  • Press the unit into a 38 mm diameter hole in a flat deck plate so all balls sit at the same height
  • Choose stainless steel case where the deck is exposed to water, cleaning agents or corrosive substances
  • Do not use on uneven or soft-bottomed items such as cloth-wrapped loads or flexible packaging

Specifications

Model NoKSH-20
MountingPress mount
Load Capacity70 kg
Max Load Capacity100 kg
Weight280 g
Ball Diameter19.05 mm
Ball MaterialSteel
Case MaterialSteel, galvanized steel, chrome plated steel, stainless steel (SUS304)
Mount Diameter38 mm
Dimension38 x 38 mm

Manufacturing Process

Step 1

Machining of the case and press fit hole

Step 2

Assembly of the steel ball and spring mechanism

Step 3

Finishing of the case surface (galvanizing, chrome plating or polishing)

Step 4

Load check and packing

Compared With Other Options

Flange mount ball transfer unitsPress mount requires no bolt holes and is faster to install, but harder to remove for service
Lower rated KSH Series unitsThe KSH-20 suits 70 kg loads, so lighter decks are better served by a smaller unit that rolls with less effort
Plain conveyor rollersBall transfer units allow movement in any direction, while rollers only move product along one axis

Spring Loaded Press Mount Ball Transfer Unit KSH-20 Questions

What load can one KSH-20 ball transfer unit carry?

The rated load capacity is 70 kg per unit and the maximum load capacity is 100 kg.

How is the KSH-20 mounted?

It is a press mount unit, so it is pressed into a 38 mm diameter hole in the deck plate.

Which case material should I choose?

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

Is a stainless steel version available?

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

How much does the unit weigh?

Each KSH-20 weighs 280 g, which is used when calculating deck weight and shipping.

Can I get other load ratings in the same series?

Yes, the KSH Series includes other load ratings, so ask for the model that matches your load per unit.

Get a Price for Spring Loaded Press Mount Ball Transfer Unit KSH-20

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