Press Mount Machined Ball Transfer Unit SP-30
The SP-30 is a press mount machined ball transfer unit with a 30.16 mm diameter ball, rated for 250 kg working load and 300 kg maximum load. It is designed to be pressed into a deck plate so that a flat, smooth object like a tray can be moved in any direction by hand. The unit weighs 380 g and is available with a steel, stainless steel or nylon ball in a steel, galvanized, chrome plated or stainless steel case.
Product Overview
The SP-30 is a press mount machined ball transfer unit with a 30.16 mm diameter ball, rated for 250 kg working load and 300 kg maximum load. It is designed to be pressed into a deck plate so that a flat, smooth object like a tray can be moved in any direction by hand. The unit weighs 380 g and is available with a steel, stainless steel or nylon ball in a steel, galvanized, chrome plated or stainless steel case.
Part of the SP Series range, used in Warehouse and Distribution Centres.
Key Benefits
- Carries 250 kg per unit in normal service and 300 kg at peak load
- Press mount fits into a pre-drilled hole in the deck plate for a flush, stable installation
- Fine machined ball and seat allow smooth movement under heavy static load
- Steel, stainless steel or nylon ball options suit different surface protection needs
- Steel, galvanized, chrome plated or stainless steel case options for dry, wet or corrosive environments
Application Scenarios
- Transfer points between two conveyor lines where product must change direction without powered diverters
- Assembly stations where a tray or flat component is rotated by hand between operations
- Feeding systems in packaging machinery where flat items need omnidirectional movement
- Processing tables where a tray is moved across a flat surface during machining or inspection
- Curved work areas on band saws or router tables where continuous movement is required
Who It Is For
- Conveyor system integrators building transfer points into automated lines
- Material handling equipment builders designing flat decks for manual handling
- Assembly line builders needing omnidirectional movement at workstations
- Industrial distributors stocking ball transfer units by load rating and mounting type
- Manufacturers of processing machinery requiring smooth, low-friction movement
Problems It Solves
- Flat items that stick or jam when pushed across a fixed deck plate
- Transfer points where product must change direction without powered components
- Operators struggling to move or rotate a tray by hand on a rigid surface
- Decks that require a single unit size to handle both light and heavy flat loads
- Need for a compact, flush-mounted unit that does not interfere with adjacent components
Technical Features
- 30.16 mm diameter ball with fine machined seat for consistent rolling under load
- Press mount design with a 45 mm mounting diameter for secure fit into a deck plate
- Ball supplied in steel, stainless steel or nylon to match the load surface
- Case supplied in steel, galvanized steel, chrome plated steel or stainless steel
- Unit weight of 380 g for deck load and shipping calculations
Materials
- Steel ball for general industrial use with high load capacity
- Stainless steel ball for wet, washdown or corrosive environments
- Nylon ball to protect painted or polished surfaces from marking
- Steel case for standard dry environments
- Galvanized or chrome plated case for improved corrosion resistance
Quality Control
- Load capacity verified against the 250 kg working load rating
- Ball rotation checked by hand for free movement in all directions
- Material grade confirmed against the ball and case option ordered
- Press fit diameter measured to ensure correct fit in the deck plate hole
- Unit weight verified at 380 g for shipping and deck load planning
Customization Options
- Ball material selected between steel, stainless steel and nylon
- Case material selected between steel, galvanized, chrome plated and stainless steel
- Other SP Series load ratings available where 250 kg is not the right size
- Mounting diameter and ball diameter fixed per model, no variation
Use Guide
- Divide the load by the number of units in contact to ensure no more than 250 kg per unit
- Keep peak and impact loading below the 300 kg maximum load figure
- Press the unit into a flat, clean deck plate with a 45 mm hole for proper fit
- Choose the nylon ball where the load surface must not be marked
- Choose stainless steel ball and case where the deck is exposed to washdown or corrosion
Specifications
| Model No | SP-30 |
|---|---|
| Mounting | Press mount |
| Load Capacity | 250 kg |
| Max Load Capacity | 300 kg |
| Weight | 380 g |
| Ball Diameter | 30.16 mm |
| Mounting Diameter | 45 mm |
| Ball Material | Steel, stainless steel, nylon |
| Case Material | Steel, galvanized, chrome plated, stainless steel |
Manufacturing Process
Step 1
Machining of the case and ball seat to precise dimensions
Step 2
Assembly of the ball and support components
Step 3
Press fit installation into the deck plate during final assembly
Step 4
Load check against the 250 kg rating before packing
Step 5
Final inspection for free rotation and material match
Compared With Other Options
| Flange mount ball transfer units | Press mount fits flush into the deck and requires no bolts, while flange mount allows easier removal but adds height |
|---|---|
| Lower rated SP Series units | The SP-30 suits 250 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 |
Press Mount Machined Ball Transfer Unit SP-30 Questions
What load can one SP-30 ball transfer unit carry?
The rated load capacity is 250 kg per unit and the maximum load capacity is 300 kg.
How is the SP-30 mounted?
It is a press mount unit, so it is pressed into a pre-drilled hole in the deck plate.
Which ball material should I choose?
Steel for general use, stainless steel for wet or corrosive areas, nylon to protect painted or polished surfaces.
Is a stainless steel version available?
Yes, both the ball and the case can be supplied in stainless steel.
How much does the unit weigh?
Each SP-30 weighs 380 g, which is used when calculating deck weight and shipping.
Can I get other load ratings in the same series?
Yes, the SP Series covers other load ratings, so ask for the model that matches your load per unit.
Get a Price for Press Mount Machined Ball Transfer Unit SP-30
Send the quantity and any material or surface option you need, and a quotation comes back against this model number.