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

Spring Loaded Flange Mount Ball Transfer Unit KSF-30B

The KSF-30B is a spring loaded flange mount ball transfer unit with a 30.16 mm diameter steel ball, rated for 200 kg working load and 250 kg maximum load. It is designed for use in transfer tables, conveyor transitions, and processing lines where heavy flat items need to be moved and rotated in any direction. The unit weighs 1.1 kg and features a carbon steel or stainless steel case with a press mount flange for secure attachment to a deck plate.

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

Product Overview

The KSF-30B is a spring loaded flange mount ball transfer unit with a 30.16 mm diameter steel ball, rated for 200 kg working load and 250 kg maximum load. It is designed for use in transfer tables, conveyor transitions, and processing lines where heavy flat items need to be moved and rotated in any direction. The unit weighs 1.1 kg and features a carbon steel or stainless steel case with a press mount flange for secure attachment to a deck plate.

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

Key Benefits

  • Carries 200 kg per unit in normal service and 250 kg at peak load
  • Spring loaded flange mount allows for slight deck deflection without binding
  • 30.16 mm diameter steel ball provides stable rolling under heavy static and dynamic loads
  • Press mount flange with two screw holes ensures solid attachment to worktable or deck
  • Available in carbon steel or stainless steel case to suit dry, wet or washdown environments

Application Scenarios

  • Transfer tables between two conveyor lines running at right angles
  • Loading stations for heavy flat panels, trays or sheet metal in assembly lines
  • Processing machinery feed points where a flat part must be rotated or repositioned
  • Packaging line transitions where a tray or container needs to be redirected
  • Curved work surfaces on band saws or router tables requiring omnidirectional movement

Who It Is For

  • Conveyor system integrators building transfer and rotation points
  • Material handling equipment builders designing transfer tables and decks
  • Assembly line engineers needing high load capacity for flat part handling
  • Industrial distributors stocking ball transfer units by load and mounting type
  • Production line builders integrating omnidirectional movement into processing stations

Problems It Solves

  • Heavy flat loads that bind or jam when pushed across a fixed deck plate
  • Transfer points where product must change direction without powered diverters
  • Operators struggling to rotate or align a heavy tray or panel by hand
  • Decks with slight warping or unevenness that cause standard ball units to bind
  • Need for a single unit that handles both light and heavy flat items without replacement

Technical Features

  • Spring loaded flange mount accommodates minor deck deflection and maintains ball contact
  • 30.16 mm diameter steel ball provides high load capacity and durability
  • Press mount flange with two screw holes for secure attachment to deck plate
  • Carbon steel case for general industrial use, stainless steel (SUS304) for wet or corrosive areas
  • Unit weight of 1.1 kg for deck load and shipping calculations

Materials

  • Carbon steel ball and case for general industrial environments
  • Stainless steel (SUS304) ball and case for wet, washdown or corrosive areas
  • Steel ball with galvanized or chrome plated case for moderate corrosion resistance

Quality Control

  • Load capacity verified against the 200 kg working load rating
  • Ball rotation checked by hand for free movement in all directions
  • Material grade confirmed against the case and ball option ordered
  • Spring preload tested to ensure consistent mounting force

Customization Options

  • Case material selected between carbon steel, galvanized, chrome plated or stainless steel (SUS304)
  • Ball material available in steel only, as per specification
  • Other KSF Series load ratings available where 200 kg is not the right size

Use Guide

  • Divide the total load by the number of units in contact to ensure no unit exceeds 200 kg working load
  • Keep peak and impact loading below the 250 kg maximum load figure
  • Mount the unit on a flat deck plate so all balls sit at the same height
  • Use stainless steel case where the deck is exposed to water, cleaning agents or corrosive environments
  • Avoid using on surfaces with uneven or soft bottoms such as cloth-wrapped items

Specifications

Model NoKSF-30B
MountingPress mount
Load Capacity200 kg
Max Load Capacity250 kg
Weight1.1 kg
Ball Diameter30.16 mm
Ball MaterialSteel
Case MaterialCarbon steel, stainless steel (SUS304)
Mount Diameter73 mm
Dimensions83 x 44 mm

Manufacturing Process

Step 1

Machining of the flange and case body

Step 2

Assembly of the steel ball and spring mechanism

Step 3

Press fitting of the ball into the case with spring preload

Step 4

Drilling and finishing of mounting holes

Step 5

Final load check and packing

Compared With Other Options

Standard flange mount ball transfer unitsThe KSF-30B’s spring loaded design allows for slight deck deflection without binding, while a rigid flange mount may fail under uneven surfaces
Lower rated KSF Series unitsThe KSF-30B suits 200 kg loads, so lighter applications are better served by a smaller unit that rolls with less effort
Non-spring loaded press mount unitsThe spring loading maintains ball contact under deck deflection, reducing binding and wear over time

Spring Loaded Flange Mount Ball Transfer Unit KSF-30B Questions

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

The rated load capacity is 200 kg per unit and the maximum load capacity is 250 kg.

How is the KSF-30B mounted?

It is a press mount unit, so it is pressed into a hole in the deck plate and secured with two screws.

Which case material should I choose?

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

Is a stainless steel version available?

Yes, the case can be supplied in stainless steel (SUS304) for wet or corrosive environments.

How much does the unit weigh?

Each KSF-30B weighs 1.1 kg, which is used for deck load and shipping calculations.

Can I get other load ratings in the same series?

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

Get a Price for Spring Loaded Flange Mount Ball Transfer Unit KSF-30B

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