Leader Chuck

WMG-ALUS20D250

"The ALUSTAR is a range of permanent magnetic circular chucks specially created for the turning and grinding of ring shaped components.The aluminium body has significantly reduced the weight of the chuck and houses a specifically designed worm gear actuating system that upon initial activation delivers between 10-20% of the holding force allowing for workpiece centring prior to applying 100% of the holding force ready for workpiece machining. Additional benefits of the unique actuation are that it provides a very safe

self-locking mechanism that prevents switching-off during machining – FAILSAFE! Atop this wizardry sits a robust

single piece top plate with radial poles and epoxy resin gaps.""The double

high energy neodymium magnetic system provides a holding force of up to 140 N/cm²dependent on the chuck size and component geometry.The usability limit of the pole plate is 7mm.Options include

through centre bore

accurate centring hole

auxiliary top plate

top plate with T-slots and a set of pole shoes."All ALUSTAR chucks are delivered with the underside of the body having a mounting recess with rear threaded holes to aid mounting to a suitable flange. Rachet key is also included.

WMG-ALUS20D250

"The ALUSTAR is a range of permanent magnetic circular chucks specially created for the turning and grinding of ring shaped components.
The aluminium body has significantly reduced the weight of the chuck and houses a specifically designed worm gear actuating system that upon initial activation delivers between 10-20% of the holding force allowing for workpiece centring prior to applying 100% of the holding force ready for workpiece machining. Additional benefits of the unique actuation are that it provides a very safe, self-locking mechanism that prevents switching-off during machining – FAILSAFE! Atop this wizardry sits a robust, single piece top plate with radial poles and epoxy resin gaps."
"The double, high energy neodymium magnetic system provides a holding force of up to 140 N/cm²dependent on the chuck size and component geometry.The usability limit of the pole plate is 7mm.
Options include, through centre bore, accurate centring hole, auxiliary top plate, top plate with T-slots and a set of pole shoes."
All ALUSTAR chucks are delivered with the underside of the body having a mounting recess with rear threaded holes to aid mounting to a suitable flange. Rachet key is also included.

Model - WMG-ALUS20D250
Chuck Diameter - 250
Maximum Through Hole - Ø30mm
Chuck Height - 79mm
Top Plate Thickness - 20mm
Mounting Recess - Ø80 x5mm
Rear Fixing Screws - 8x M6
Rear Fixing Screws PCD - Ø166.0 & 220.0mm
Chuck Weight - 18.0Kg
Number of Poles - 12
Life span (regrinding limit) - 5mm
Nominal Holding Force - 140 N/cm²
Brand Name - Walmag

Construction

Robust, single piece top plate with radial poles and epoxy resin gaps
Double, high energy Neodymium magnetic system
Solid aluminium body with worm gear actuating mechanism, unique, very safe, self-locking mechanism, preventing switching-off during machining
Maximum clamping force up to 140 N/cm2 depending on the size of the chuck and the component

Application

Turning and grinding of ring shaped components

Scope of supply

Ratchet key

Options

Through going centre bore
Accurate centring hole
Auxiliary top plate
Top plate with T-slots
Set of pole shoes

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