Air Spring Conversion Kit

Converts torsion spring mini mills to air spring
Allows travel to the top of the column
Provides better support for the mill head

Part Number: 2258
Weight: 3.11 lb

Price: $52.95

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Convert torsion spring mini mills to air spring.

Most mini mills use a torsion spring mounted on the side of the column to support the head. This air spring conversion kit provides all the parts required to change to a vertical air spring that mounts inside and above the column.

With the air spring installed, you can move the mill head up until the top of the casting is almost flush with the top of the column. You can move it down until it almost contacts the adjustable Z-axis stop set in its lowest position.

Besides all the parts required to mount the air spring, this kit also includes a longer Z-axis rack so you can take advantage of the longer head motion.

This air spring has about 35 pounds of force. This is not enough to totally support the head, but it is a heck of a lot more support than the torsion arm provides.

Chris' Tips

Chris' Tips
This kit comes with complete instructions for installation.

This video is a step-by-step guide to installing the air spring.

Compatibility

Compatibility

This product works with the following mills. (If your machine is not on this list, we cannot verify compatibility.)

Bolton XJ-9510 Mill/Drill
Clarke CMD300 Milling Drilling Machine
Grizzly G8689 Mini Milling Machine
Hare & Forbes HM-10 Mill/Drill
Princess Auto 8507667 Powerfist Mini Mill
SIEG X2-MT3 Mini Mill
Micro-Mark 82573 MicroLux Milling Machine
BusyBee CX605 Craftex Mini Mill
Cummins (Tools Now) 7877 Mini Mill
Eastwood 32498 Mini Mill
Harbor Freight 44991 Central Machinery Mill/Drill
Homier 03947 Speedway Mini Mill
Northern Tool 49657 KLUTCH Mini Mill
Penn Tool Co XJ-9510-1 Precise Mini Mill
SIEG X2-R8 Mini Mill
Travers Tools OT2213 OTMT Mini Mill
SIEG X2P Mini Mill
LittleMachineShop.com 4962 SIEG Mini Mill
SIEG X2D Mini Mill
SIEG X2L Mini Mill
WEN 33013 WEN Mini Mill
BusyBee CX705 Craftex Lathe Mill Combo
Grizzly G0516 Lathe Mill Combo
SIEG M6 Multi-purpose Machine