Eclipse Magnetic Chucks &Accessories

Eclipse Permanent Magnetic Chucks are renowned the world over for their outstanding performance and reliability.

Rectangular Chucks | Circular Chucks | Radial Pole Chucks | Fine Pole Chucks | Chuck Blocks | Magnetic Vee Block | Demagnetisers |


Rectangular Chucks

The well proven rigid assembly of Eclipse Rectangular Chucks aids accurate grinding or milling. The use of carefully selected pole spacing ensures the maximum possible grip on a wide selection of workpieces. Awkward workpieces can be accommodated by using an additional top plate which can be machined to meet requirements.

Rectangular Grinding Series Handle Style Width of top plate (mm) Length of base plate (mm) Height (mm)
AXM 818 Removable 200 457 68
AXM 820 Removable 200 508 68
AXM 1020 Fixed 254 508 68
AXM 1220 Fixed 305 508 68
AXM 1224 Fixed 305 610 68

Circular Chucks
Eclipse Circular Chucks will hold work during turning operations on lathes and for grinding on internal, cylindrical or rotary grinding machines. They have a rigid assembly, thick top plate and are operated by a removable handle. Eclipse chucks can be partially energised to simplify the correct positioning of the workpiece. Additional top plates can be provided to accommodate awkward shaped workpieces.

Circular Diameter (mm) Height (mm)
AX 15C Removable 381 83

Radial Pole Chucks
The Radial Pole range of chucks are highly versatile and are the most powerful of their type. The thru-bore allows easy location for fixturing and for coolant to be fed through the chuck. With the removable brass centre plug in position, the entire surface can be utilised.

Catalogue No. Outside A (mm) Thru' Bore Pole Depth C (min) Height d (mm) No of Poles D (mm)
NR100C 100 N/A 10 53 6
NR150C 150 36 12 63 10
NR225C 225 50 15 70 14
NR300C 300 62 20 80 18

Fine Pole Chucks
Fine Pole Chucks have a unique pole design, which in conjunction with powerful magnets, provide an extremely strong and versatile unit, capable of holding a wide range of thinner workpieces. Each chuck in the range has 3 magnetic faces, angled side and end brass stops, smooth, easy switching and variable power.

Catalogue No. Width of top plate (mm) Length of base plate (mm) Height (mm) Weight (kg)
FP510 127 250 65 10.5
FP612 152 300 65 14.0
FP614 152 350 65 16.5
FP618 152 450 65 21.0
FP824 200 600 70 56.0

Chuck Blocks
Workpieces which have an underside projection may require support above the chuck face. Other workpieces may need supporting on an inside or side face. For such applications, chuck blocks should be used to extend the flux paths of a magnetic chuck with parallel poles. They may be used horizontally or vertically, but the laminations must always be placed in line with the inner poles on the chuck top plate. It is permissible to machine chuck blocks to an angle or with grooves to accept irregular shaped workpieces. Supplied in matched and numbered pairs.

Catalogue No. Width (mm) In Length (mm) In Height (mm) In Unit of pack
950 75 3 60 2 3/8 30 1 3/16 1 pair

Magnetic Vee Block
The Magnetic Vee Block will hold cylindrical workpieces for grinding. It will hold both itself and the workpiece on any flat ferrous surface, including a permanent magnet chuck (without energising the chuck). There are two vees. The smaller model is intended for workpieces up to 20mm in diameter and the larger model is intended for workpieces up to 65mm in diameter. The vees and faces are energised or de-energised simultaneously.
It is sometimes advantageous to use two Magnetic Vee Blocks together (matched pairs are available).
Note: Not suitable for the rotation of workpieces for inspection.

Catalog No. Width (mm) Length (mm) Height (mm) Weight (kg)
E934 single unit 69.85 101.6 95.25 3.96
E934 MP matched pairs 7.92
E935 single unit 69.85 80 95.25 3.12
E935 MP matched pairs 6.24

Some workpiece materials retain a certain amount of magnetism after being held by a magnetic chuck. Subsequent operations may necessitate the efficient demagnetisation of the workpiece materials. The Eclipse range of demagnetisers proves invaluable for this purpose. N.B. The Demagnetisers are not intended for continuous use and should not exceed the two minutes 'on' in any four minutes.

Table Top Demagnetiser
The Eclipse Table Top Demagnetiser simply requires a connection to a suitable A.C. power supply. A buzzer indicates when the current is on.

Catalogue Single unit. Supply voltage Single phase AC Frequency Hz (cycles/sec) Dims. (mm) Length Width Height Weight (kg)
DA 955 200/250 40/60 150 117 87 3.83
DB 956 100/130 40/60



link to Eclipse® index page

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