Flange Mount Ball Transfer Unit SD-38
The SD-38 is a flange mount ball transfer unit with a 38 mm diameter steel main ball, rated for 350 kg working load and 400 kg maximum load. It bolts through a flange onto a deck plate or worktable so that a heavy tray, pallet or flat panel can be pushed and rotated in any direction by hand. The unit weighs 1.8 kg and is available with a steel, galvanized steel, chrome plated steel or stainless steel case.
Product Overview
The SD-38 is a flange mount ball transfer unit with a 38 mm diameter steel main ball, rated for 350 kg working load and 400 kg maximum load. It bolts through a flange onto a deck plate or worktable so that a heavy tray, pallet or flat panel can be pushed and rotated in any direction by hand. The unit weighs 1.8 kg and is available with a steel, galvanized steel, chrome plated steel or stainless steel case.
Part of the SI SD Series range, used in Warehouse and Distribution Centres.
Key Benefits
- Carries 350 kg per unit in normal service and 400 kg at peak load
- Flange mount fixes the unit from above so the deck plate needs only a clearance hole
- 38 mm diameter ball provides stable rolling under heavy flat loads
- Steel or stainless steel case options for dry, wet or corrosive environments
- Two screw holes in the flange allow secure attachment to worktables or decks
Application Scenarios
- Transfer tables between two conveyor lines running at right angles
- Assembly stations where a heavy tray or panel must be rotated by hand
- Feeding systems for packaging machinery requiring 360 degree movement
- Processing tables where flat components are repositioned during machining
- Conveyor transfer points where product must change direction without powered diverters
Who It Is For
- Conveyor system integrators building high load transfer points
- Industrial equipment builders designing worktables with manual rotation
- Packaging machinery manufacturers needing omni-directional movement
- Material handling equipment makers building flat deck transfer systems
- Industrial distributors stocking ball transfer units by load rating
Problems It Solves
- Heavy flat loads that jam when pushed across a fixed deck plate or plain rollers
- Transfer points where product must change direction without a powered diverter
- Operators straining to rotate or align a load by hand at the end of a line
- Mixed decks where a single load rating must cover both light and heavy items
- Worktables that require stable, low-friction movement for flat components
Technical Features
- 38 mm diameter steel main ball for high load capacity and durability
- Flange mount with two screw holes for secure attachment to deck or table
- Main ball made of steel for general industrial use
- Case available in carbon steel, galvanized steel, chrome plated steel or stainless steel
- Unit weight of 1.8 kg for deck load and shipping calculations
Materials
- Carbon steel ball and case for general industrial use
- Galvanized steel case for improved corrosion resistance in humid environments
- Chrome plated steel case for wear resistance and appearance
- Stainless steel (SUS304) case for wet, washdown or corrosive areas
- Steel ball for high load and wear resistance
Quality Control
- Load capacity verified against the 350 kg working load rating before packing
- Ball rotation checked by hand for free movement in all directions
- Material grade confirmed against the case and ball option ordered
- Flange hole alignment checked for proper bolt fit
- Unit weight verified at 1.8 kg 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 is steel for all standard units
- Other SD Series load ratings available where 350 kg is not the right size
- Mount diameter and flange hole pattern maintained for standard deck compatibility
Use Guide
- Divide the load by the number of units in contact to check the 350 kg per unit rating
- Keep peak and impact loading below the 400 kg maximum load figure
- Mount units on a flat deck plate so all balls sit at the same height
- Choose stainless steel case where the deck is washed down or exposed to moisture
- Use only for flat, smooth surfaces such as trays, panels or pallets
Specifications
| Model No | SD-38 |
|---|---|
| Mounting | Flange mount |
| Load Capacity | 350 kg |
| Max Load Capacity | 400 kg |
| Weight | 1.8 kg |
| Ball Diameter | 38 mm |
| Ball Material | Steel |
| Case Material | Carbon steel, galvanized steel, chrome plated steel, stainless steel (SUS304) |
| Mount Diameter | 58 mm |
| Dimensions | 76 x 62 mm |
Manufacturing Process
Step 1
Machining of the flange and case body
Step 2
Assembly of the steel ball and support bearings
Step 3
Drilling and finishing of flange mounting holes
Step 4
Load check against the 350 kg rating before packing
Step 5
Final inspection and packing
Compared With Other Options
| Press mount ball transfer units | Flange mount bolts to the deck and can be removed for service, while a press fit unit is faster to install but harder to replace |
|---|---|
| Lower rated SD Series units | The SD-38 suits 350 kg loads, so lighter decks are better served by a smaller unit that rolls with less effort |
| Plain conveyor rollers | Ball transfer units allow movement in any direction, while rollers only move product along one axis |
Flange Mount Ball Transfer Unit SD-38 Questions
What load can one SD-38 ball transfer unit carry?
The rated load capacity is 350 kg per unit and the maximum load capacity is 400 kg.
How is the SD-38 mounted?
It is a flange mount unit, so it is bolted through the flange onto the deck plate rather than pressed into a hole.
Which case material should I choose?
Carbon steel for general use, galvanized steel for humidity 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 SD-38 weighs 1.8 kg, which is used when calculating deck weight and shipping.
Can I get other load ratings in the same series?
Yes, the SD Series covers other load ratings, so ask for the model that matches your load per unit.
Get a Price for Flange Mount Ball Transfer Unit SD-38
Send the quantity and any material or surface option you need, and a quotation comes back against this model number.