Flange Mount Fine Machined Ball Transfer Unit D-8HA
The D-8HA is a flange mount ball transfer unit with a fine machined main ball, rated for 100 kg working load and 150 kg maximum load. It bolts through a flange onto a transfer table or deck so that a flat, smooth object like a tray or pallet can be pushed and rotated in any direction by hand. The unit weighs 450 g and is available with a nylon, steel or stainless steel main ball in a steel or stainless steel case.
Product Overview
The D-8HA is a flange mount ball transfer unit with a fine machined main ball, rated for 100 kg working load and 150 kg maximum load. It bolts through a flange onto a transfer table or deck so that a flat, smooth object like a tray or pallet can be pushed and rotated in any direction by hand. The unit weighs 450 g and is available with a nylon, steel or stainless steel main ball in a steel or stainless steel case.
Part of the D Series range, used in Sheet Metal and Press Shops.
Key Benefits
- Carries 100 kg per unit in normal service and 150 kg at peak load
- Flange mount fixes the unit from above so the deck plate needs only a clearance hole
- Fine machined ball seat keeps rolling effort low under heavy static load
- Stainless steel ball and case option for washdown and food handling decks
- Nylon ball option protects painted panels and polished sheet from marking
Application Scenarios
- Transfer tables between two conveyor lines running at right angles
- Ball decks at the discharge end of a roller conveyor where operators rotate trays
- Assembly stations where a fixture is turned by hand between operations
- Sheet metal loading tables feeding a press brake or laser cutter
- Packaging lines where flat trays are repositioned for labeling or sealing
Who It Is For
- Conveyor builders designing transfer and rotation points into a line
- Sheet metal shops loading heavy blanks onto cutting and forming machines
- Material handling equipment makers building ball decks and transfer tables
- Industrial distributors stocking ball transfer units by load rating
Problems It Solves
- Heavy loads that jam when pushed across a fixed deck plate or plain rollers
- Transfer points where product has to 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 has to cover both light and heavy items
Technical Features
- Fine machined ball and seat rather than a pressed or stamped housing
- Flange with mounting holes so the unit is bolted rather than pressed in
- Main ball supplied in nylon, steel or stainless steel to suit the load surface
- Case supplied in steel or stainless steel for dry or wet environments
- Unit weight of 450 g for deck load and shipping calculations
- 25.4 mm (1 inch) ball diameter for consistent contact with flat surfaces
- Mount diameter of 67 mm (2.64 inch) for compatibility with standard deck holes
Materials
- Nylon main ball for non marking contact with painted or polished surfaces
- Carbon steel ball and case for general industrial decks
- Stainless steel ball and case for wet, washdown or corrosive areas
Quality Control
- Load capacity checked against the 100 kg rating before packing
- Ball rotation checked by hand for free movement in all directions
- Material grade confirmed against the ball and case option ordered
Customization Options
- Ball material selected between nylon, steel and stainless steel
- Case material selected between steel and stainless steel
- Other D Series load ratings available where 100 kg is not the right size
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
- Mount units on a flat deck plate so all balls sit at the same height
- Choose the nylon ball where the load surface must not be marked
- Choose stainless steel ball and case where the deck is washed down
Specifications
| Model No | THD-8HA |
|---|---|
| Mounting | Flange mount |
| Load Capacity | 100 kg |
| Max Load Capacity | 150 kg |
| Weight | 450 g |
| Ball Diameter | 25.4 mm |
| Ball Material | Nylon, steel or stainless steel |
| Case Material | Steel or stainless steel |
| Mount Diameter | 67 mm |
| Dimensions | 78 mm x 32 mm |
Manufacturing Process
Step 1
Machining of the case and ball seat
Step 2
Ball and support ball assembly
Step 3
Flange drilling and finishing
Step 4
Load check 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 D Series units | The D-8HA suits 100 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 Fine Machined Ball Transfer Unit D-8HA Questions
What load can one D-8HA ball transfer unit carry?
The rated load capacity is 100 kg per unit and the maximum load capacity is 150 kg.
How is the D-8HA 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 ball material should I choose?
Nylon for surfaces that must not be marked, carbon steel for general use and stainless steel for wet or washdown areas.
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 D-8HA weighs 450 g, which is used when calculating deck weight and shipping.
Can I get other load ratings in the same series?
Yes, the D Series covers other load ratings, so ask for the model that matches your load per unit.
Get a Price for Flange Mount Fine Machined Ball Transfer Unit D-8HA
Send the quantity and any material or surface option you need, and a quotation comes back against this model number.