Spring Loaded Press Mount Ball Transfer Unit KST-12
The KST-12 is a spring loaded press mount ball transfer unit with a 12.7 mm diameter steel ball, rated for 30 kg working load and 50 kg maximum load. It is designed to be pressed into a 25.4 mm diameter hole in a flat deck plate, allowing light trays and flat components to be moved and rotated in any direction by hand. The unit weighs 180 g and is available with a steel, galvanized steel, chrome plated, or stainless steel case.
Product Overview
The KST-12 is a spring loaded press mount ball transfer unit with a 12.7 mm diameter steel ball, rated for 30 kg working load and 50 kg maximum load. It is designed to be pressed into a 25.4 mm diameter hole in a flat deck plate, allowing light trays and flat components to be moved and rotated in any direction by hand. The unit weighs 180 g and is available with a steel, galvanized steel, chrome plated, or stainless steel case.
Part of the KS KSM Series range, used in Warehouse and Distribution Centres.
Key Benefits
- Carries 30 kg per unit in normal service and 50 kg at peak load
- Spring loaded press mount allows quick installation into a pre-drilled hole
- 12.7 mm diameter ball provides smooth omnidirectional movement for flat items
- Steel or stainless steel case options suit dry, wet or washdown environments
- Compact 25.4 mm diameter and 28.6 mm height fit into tight deck spaces
Application Scenarios
- Transfer points between two conveyor lines where light trays need to be redirected
- Assembly line stations where a flat component is rotated by hand for alignment
- Packaging machinery where trays are moved laterally across a work surface
- Feeding systems for small parts or flat components on a fixed deck
- Processing tables where a tray is repositioned without powered movement
Who It Is For
- Conveyor system integrators building low load transfer points
- Material handling equipment builders needing compact ball transfer units
- Industrial distributors stocking ball transfer units by load and mount type
- Assembly line designers requiring manual rotation of light components
- Packaging machinery builders integrating manual transfer zones
Problems It Solves
- Light loads that stick or drag when pushed across a fixed deck plate
- Transfer points where product must change direction without powered diverters
- Operators struggling to rotate a light tray by hand on a rigid surface
- Need for a compact unit that fits into a small deck hole without extra mounting hardware
- Requirement for a unit that can be installed quickly without bolts or flanges
Technical Features
- Spring loaded press mount design allows insertion into a 25.4 mm hole
- 12.7 mm diameter steel ball enables omnidirectional movement of flat items
- Steel case with optional galvanizing, chrome plating or stainless steel finish
- Two screw holes around the bearing for optional attachment to the deck
- Compact 25.4 mm diameter and 28.6 mm height for space-constrained decks
Materials
- Carbon steel ball and case for general industrial use
- Galvanized steel case for improved corrosion resistance in humid areas
- Chrome plated case for wear resistance and a smoother surface
- Stainless steel case (SUS304) for washdown, food, or corrosive environments
Quality Control
- Load capacity tested against the 30 kg rating before packing
- Ball rotation checked by hand for free movement in all directions
- Material grade confirmed against the case option ordered
- Spring loading verified to hold the ball in place under pressure
Customization Options
- Case material selected between steel, galvanized steel, chrome plated, or stainless steel
- Ball material is steel, not available in nylon or other materials
- Other KST Series load ratings available where 30 kg is not the right size
Use Guide
- Ensure the deck hole is exactly 25.4 mm in diameter for proper press fit
- Do not exceed 50 kg peak load to avoid permanent deformation
- Use only on flat, smooth surfaces such as trays or metal sheets
- Avoid use on soft or uneven bottom surfaces like cloth-wrapped items
- Choose stainless steel case for washdown or corrosive environments
Specifications
| Model No | KST-12 |
|---|---|
| Mounting | Press mount spring loaded |
| Load Capacity | 30 kg |
| Max Load Capacity | 50 kg |
| Weight | 180 g |
| Ball Diameter | 12.7 mm |
| Ball Material | Steel |
| Case Material | Steel, galvanized steel, chrome plated, stainless steel |
| Mount Diameter | 25.4 mm |
| Dimension | 25.4 x 28.6 mm |
Manufacturing Process
Step 1
Machining of the case and spring housing
Step 2
Assembly of the steel ball with spring loading mechanism
Step 3
Drilling of two screw holes around the bearing for optional attachment
Step 4
Finishing and surface treatment based on material option
Step 5
Final inspection and packing
Compared With Other Options
| Flange mount ball transfer units | Press mount installs faster with no bolts, but is harder to remove for service compared to a flange mount |
|---|---|
| Lower rated KST Series units | The KST-12 suits 30 kg loads, so lighter applications are better served by a smaller unit that rolls with less effort |
| Bolted or flange mount units | Press mount requires no additional hardware, but cannot be easily removed or replaced after installation |
Spring Loaded Press Mount Ball Transfer Unit KST-12 Questions
What load can one KST-12 ball transfer unit carry?
The rated load capacity is 30 kg per unit and the maximum load capacity is 50 kg.
How is the KST-12 mounted?
It is a spring loaded press mount unit, so it is pressed into a 25.4 mm diameter hole in the deck plate.
Which case material should I choose?
Steel for general use, galvanized for humidity resistance, chrome plated for wear resistance, stainless steel for washdown or corrosive areas.
Is a stainless steel version available?
Yes, the case can be supplied in stainless steel (SUS304).
How much does the unit weigh?
Each KST-12 weighs 180 g, which is used for deck load and shipping calculations.
Can I get other load ratings in the same series?
Yes, the KST 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 KST-12
Send the quantity and any material or surface option you need, and a quotation comes back against this model number.