SP Series Machined Ball Transfer Units
SP units are machined rather than pressed: the body is turned from bar stock, which gives a tighter ball seat, a more repeatable ball height and a housing that holds its shape under impact. They are the choice for press shops, tool rooms and heavy transfer plates where a pressed cup would spread.
SP Series models we manufacture
Press Mount Machined Ball Transfer Unit SP-60
Load Capacity: 800kgs
Press Mount Machined Ball Transfer Unit SP-90
Load Capacity: 3000kgs
Press Mount Machined Ball Transfer Unit SP-76
Load Capacity: 2000kgs
Stud Mound Machined Ball Transfer Unit SP-45FL
Load Capacity: 400kgs
Press Mount Machined Ball Transfer Unit SP-45
Load Capacity: 450kgs
Stud Mound Machined Ball Transfer Unit SP-30FL
Load Capacity: 200kgs
Press Mount Machined Ball Transfer Unit SP-30
Load Capacity: 250kgs
Press Mount Machined Ball Transfer Unit SP-25
Load Capacity: 180kgs
Press Mount Machined Ball Transfer Unit SP-22
Load Capacity: 140kgs
Small Load for Stud Mount Machined Ball Transfer Unit SP-22FL
Load Capacity: 140kgs
Stud Mound Machined Ball Transfer Unit SP-15FL
Load Capacity: 40kgs
Press Mount Machined Ball Transfer Unit SP-15
Load Capacity: 40kgs
Press Mount Machined Ball Transfer Unit SP-12
Load Capacity: 25kgs
Stud Mound Machined Ball Transfer Unit SP-8FL
Load Capacity: 8kgs
Press Mount Machined Ball Transfer Unit SP-8
Load Capacity: 8kgsThe problem this group solves
On heavy plates the failure is rarely the ball — it is the housing losing its geometry after repeated drop loading, which lets dirt into the support bed and stalls the ball.
How to choose
Specify SP where impact loading is present or where the ball height tolerance matters to a downstream machine. For the same nominal load in a lighter, cheaper body, the pressed CY series is the alternative.
Typical applications
- Die and mould change tables in press shops
- Heavy transfer plates for machined castings and weldments
- Machine tool loading stations where positional repeatability matters
- Roll and coil handling decks
Where SP Series is specified
Automotive and General Manufacturing
Ball transfer tables for die handling, sprocket-driven roller groups and heavy metal flow track for press and weld shops.
SolutionBall Transfer Tables and Transfer Plates
Laying out a ball table so an operator can rotate and align a load with one hand, and so the units survive the way the load arrives.
Frequently Asked Questions
Why choose a machined unit over a pressed one?
A machined body keeps the load ball seat concentric under impact and allows a heavier rating in the same diameter. It costs more per unit and is normally used where a pressed body has already failed.
Can SP units be supplied in stainless?
Machined bodies can be produced in stainless steel. Confirm the exact model and finish with our sales team before ordering.
Need sp series quoted?
Send the model numbers and quantities; we reply with price, lead time and drawings.