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

Spring Loaded Press Mount Ball Transfer Unit KSF-30

The KSF-30 is a spring loaded press mount ball transfer unit with a 30 mm diameter steel ball, rated for 100 kg working load and 150 kg maximum load. It is designed to be pressed into a hole in a deck plate, allowing a flat, smooth object like a tray to be moved and rotated in any direction by hand. The unit weighs 768 g and is available with a steel, galvanized steel, chrome plated steel or stainless steel case.

Spring loaded press mount ball transfer unit KSF-30 with steel ball and steel case
Spring loaded press mount ball transfer unit KSF-30 with steel ball and steel case

Product Overview

The KSF-30 is a spring loaded press mount ball transfer unit with a 30 mm diameter steel ball, rated for 100 kg working load and 150 kg maximum load. It is designed to be pressed into a hole in a deck plate, allowing a flat, smooth object like a tray to be moved and rotated in any direction by hand. The unit weighs 768 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 100 kg per unit in normal service and 150 kg at peak load
  • Spring loaded design maintains ball contact under load and compensates for minor deck misalignment
  • Press mount fixes the unit into a hole in the deck plate for a flush, stable installation
  • 30 mm diameter ball allows smooth movement of trays and flat components across a deck
  • Steel or stainless steel case options suit dry, wet or washdown environments

Application Scenarios

  • Transfer points in a flat conveyor line where trays need to be rotated or repositioned by hand
  • Feeding stations on a packaging line where a tray must be turned to align with the next process
  • Assembly line workstations where a component is rotated between operations
  • Processing machinery where a flat part is moved across a table in multiple directions
  • Curved work surfaces on band saws or router tables requiring omnidirectional movement

Who It Is For

  • Conveyor system integrators building transfer and rotation points into a line
  • Material handling equipment builders designing decks for tray handling
  • Packaging machinery manufacturers needing omnidirectional movement in feeding systems
  • Industrial distributors stocking ball transfer units by load and mounting type

Problems It Solves

  • Trays or flat parts that stick or jam when pushed across a fixed deck plate
  • Transfer points where product must change direction without powered diverters
  • Operators struggling to rotate a load by hand due to high friction or misaligned rollers
  • Decks with uneven surfaces where a fixed ball transfer unit loses contact
  • Need for a compact, flush-mounted unit that does not interfere with product movement

Technical Features

  • Spring loaded mechanism maintains ball contact under load
  • 30 mm diameter steel ball for consistent rolling performance
  • Press mount design with a 49 mm mounting diameter for secure fit
  • Housing made from carbon steel, galvanized steel, chrome plated steel or stainless steel
  • Unit weight of 768 g for deck load and shipping calculations

Materials

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

Quality Control

  • Load capacity verified against the 100 kg working load rating
  • 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
  • Other KSF Series load ratings available where 100 kg is not the right size
  • Spring load adjustment not available, but unit is designed for standard load conditions

Use Guide

  • Divide the load by the number of units in contact to check the 100 kg per unit rating
  • Keep peak and impact loading below the 150 kg maximum load figure
  • Press the unit into a hole with a 49 mm diameter to ensure a secure fit
  • Use only on flat, smooth surfaces such as trays or sheet metal
  • Avoid use on soft or uneven bottom surfaces like cloth-wrapped items

Specifications

Model NoKSF-30
MountingPress mount
Load Capacity100 kg
Max Load Capacity150 kg
Weight768 g
Ball Diameter30 mm
Mount Diameter49 mm
Ball MaterialSteel
Case MaterialSteel, galvanized steel, chrome plated steel, stainless steel

Manufacturing Process

Step 1

Machining of the case and spring housing

Step 2

Assembly of the steel ball and spring mechanism

Step 3

Press fit preparation for mounting hole

Step 4

Final inspection and packing

Compared With Other Options

Flange mount ball transfer unitsPress mount units are flush with the deck and require no bolts, while flange mount units are easier to remove and replace
Lower rated KSF Series unitsThe KSF-30 suits 100 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 KSF-30 Questions

What load can one KSF-30 ball transfer unit carry?

The rated load capacity is 100 kg per unit and the maximum load capacity is 150 kg.

How is the KSF-30 mounted?

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

Which case material should I choose?

Carbon steel for general use, galvanized steel for mild corrosion resistance, chrome plated steel for wear and appearance, stainless steel (SUS304) for wet or washdown areas.

Is a stainless steel version available?

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

How much does the unit weigh?

Each KSF-30 weighs 768 g, which is used when calculating deck weight and shipping.

Can I get other load ratings in the same series?

Yes, the KSF Series covers 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 KSF-30

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