Alustar permanent magnetic chuck for turning and circular grinding

When to choose an Alustar chuck:

The Alustar permanent chuck is used during turning and grinding of ring-shaped workpieces. The chuck excels due to its low weight resulting from the aluminium design of the body. It can cope with a larger weight range of machined components. With this chuck, you have the possibility to machine the front, inner and outer diameter of the workpiece in one operation. The possibility of continuous control of the holding force facilitates centring.

Advantages:

Compact top plate made of one piece of steel with radial poles
High performance magnetic system with neodymium magnets
Unique construction with a self-locking switch mechanism for continuous adjustment of the holding force facilitating workpiece centring
Aluminium base reduces the load on the machine tool spindle and increases the available weight capacity of workpieces
Very safe, self-locking mechanism preventing the chuck from switching off during machining
A recess and threaded holes on the underside of the base for clamping to a suitable flange

Related products

Neostar permanent magnetic chuck
Neostar round chuck for clamping the workpieces during milling and round grinding.

HD hand-held demagnetizer for demagnetizing large and complex components
HD demagnetizer for demagnetizing components.

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Display as table

Catalog number	Diameter of magnetic chuck	Height [mm]	Availability (approximate)	Price without VAT (valid for EU only)
ALUS20D200	D200 mm	79.00	usually in stock	On request
ALUS20D250	D250 mm	79.00	usually in stock	On request
ALUS20D300	D300 mm	82.00	usually in stock	On request
ALUS20D350	D350 mm	82.00	usually in stock	On request
ALUS20D400	D400 mm	84.00	usually in stock	On request
ALUS30D500	D500 mm	109.00	usually in stock	On request
ALUS30D600	D600 mm	109.00	7 - 8 weeks	On request
ALUS30D700	D700 mm	120.00	8 - 9 weeks	On request
ALUS30D800	D800 mm	120.00	8 - 9 weeks	On request

Detailed description:

The Alustar permanent magnetic circular chuck is a lightweight version of the Neostar chuck. The aluminium body reduces its weight significantly thereby allowing clamping of workpieces with larger weights than the basic Neostar version. The great advantage of the chuck is the patented switch mechanism, which makes it possible to adjust the holding force variably and fix the adjusted holding force in any position Thanks to the switching mechanism, you can switch the chuck to 10 to 20 % power to centre the workpiece easily, then switch to 100 % and proceed with safe operation. The long life span of the permanent magnetic chuck is ensured by the solid single piece top plate. Possibility to regrind by up to 5 mm. It is possible to deliver this chuck with a through-hole by request.

Important parameters:

Application: Turning, grinding
Technology: Permanent
Holding force: 140 N/cm²
Poles: Radial
Regrinding limit: 5 mm
Guarantee: 2 years

Additional information:

Beyond the standard design, the customer can choose:

Central drilling
Precise centre hole (possibly through)
Auxiliary top plate
Pole plate with T-slots
Set of pole extensions

Scope of supply:

Magnetic chuck
Ratchet wrench
Instructions for use

Use:

Turning and grinding of round and ring-shaped workpieces

Parameters:

Model	D (mm)	H (mm)	D1 (mm)	E (mm)	F (mm)	Hmotnost (kg)
ALUS20D200	200	79	20	110	180	11,5
ALUS20D250	250	79	30	166	220	18
ALUS20D300	300	82	38	180	260	27
ALUS20D350	350	84	40	220	300	36
ALUS20D400	400	84	40	260	340	47
ALUS30D500	500	109	50	330	400	98
ALUS30D600	600	109	90	350	450	142