Magnetic Workholding
Improving process efficiency and precision accuracy
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Innovative Magnetic Solutions
When precision counts, Eclipse delivers...
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A world leader in magnetic technology Innovative Magnetic Solutions
Eclipse Magnetics 100 years of manufacturing excellence
A world leader in magnetic technology With 100 years of experience in the design and manufacture of high performance magnetic systems, we supply critical equipment to some of the leading names in the most demanding industries. Our magnetic technology is widely used at leading worldwide companies and in major development projects, all requiring a guarantee of equipment performance. Designing excellence We have a track record of producing high quality products backed by a commitment to total customer service. Our technical application teams have a wealth of experience, thus ensuring many of our products are market leading innovations. All manufacturing is carried out under an ISO 9001 certified quality management system. Unrivalled product range We serve worldwide markets with an extensive product range including workholding systems, filtration systems, foreign body removal systems, magnet assemblies and complex magnetic industrial equipment used in industries such as automotive, aerospace and nuclear. Many of our products are unique and are covered by global patents. Worldwide support We offer worldwide support through our offices in the UK, Canada and China. We also have numerous employees in various territories and a network of technically trained partners to provide local product support.
Serving some of the leading names in industry
Toyota Honda NSK Denso BMW BAE Systems JCB TATA Steels Ford
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Innovative Magnetic Solutions
A world leader in magnetic technology
Driving competitive edge into precision operations High Performance Magnetic Workholding Systems How a machined part is held is as important as how it is cut….. An efficient manufacturing process requires good machine selection, premier cutting tools, good quality clean fluids and dependable workholding. The first three areas often receive substantial consideration and investment, but the workholding solution is often neglected. With manufacturing operations using higher cutting speeds that place greater force on workholding equipment, choosing the correct workholding method is essential. Eclipse Magnetics manufacture high performance magnetic workholding systems for a range of machining applications, from low volume single piece to high volume multi-part operations. Specifying an Eclipse system provides a range of advantages for your process:- Vast improvements in production efficiency Faster set up, feed rates and metal removal – can give 500% increase in units per hour Clamping time reduced to virtually zero – instant location, no manual clamping Continuous machining of 5 faces - no need to stop and relocate the workpiece Easy access for through machining, cutting and drilling Improved safety – failsafe permanent magnetic technology guarantees a secure hold
Guaranteed precision
100% consistent clamping – no operator variations Eliminates vibration – extends tool life and improves accuracy Ideal for multi-part and multi-directional machining
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One of the biggest challenges for precision manufacturers is to produce a consistent quality product. Repeated accuracy requires perfect holding integrity. Using permanent magnetic technology, Eclipse Magnetics workholding systems generate a consistent clamping force which drastically reduces the risk of part variations during machining. 100% Accuracy: Repeatability
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Give your business the edge….. A few of our many satisfied customers...
Novapax Precision mould making Product: Premier Range Circular
Novapax are a leading mould maker for the plastics industry. Premier range magnetic chucks are used for holding grinding tools whilst they are being refurbished. It is vital that the tools are in premium condition to ensure that the moulds are produced to precise tolerances. The main advantage is that magnetic workholding does not damage the tooling during clamping. In addition downtime was reduced as mounting components can be done in just a few seconds. The concentric chuck eliminates any vibration thus ensuring an accurate repeatable grind.
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Optimum workholding solutions Important considerations
Product Selector A guide on how to use our standard products. Please speak to our sales
Premier chucks
Applications
Product Type
Page
Gen Heavy
Turning Grinding Light Milling
Rectangular Range (Manual Chucks) Premier Range Rectangular Chucks Standard Range Standard Pole Rectangular Chucks Standard Range Fine Pole Rectangular Chucks Circular Range (Manual Chucks) Premier Radial Pole Circular Chucks
8
✔
✔
12
✔
✔
12
✔
11
✔ ✔
✔
Premier Straight Pole Circular Chucks
10
✔ ✔
✔
Standard Range Standard Pole Circular Chucks Standard Range Fine Pole Circular Chucks
13 13
✔ ✔
✔
Standard chucks
✔ ✔
✔
Note: Table is an approximate guide for specific applications please contact us.
Important Key factors to consider A guidence on key considarations when choosing the correct product. Please contact our sales department for more information or for any specific requirements.
Material Thickness To achieve maximum clamping force minimum materials should be observed.
Power Matrix
Saturated
Thin steel
Minimum part thickness provides 100% performance
Wasted flux
Closed Circuit Maximum holding power
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Material Type The scale below highlights the effect that material type has on clamping forces.
s department for more information.
Material Thickness (mm)
neral / y milling
1
2
5
10
15
20 and above
Workpiece Material
✔ ✔ ✔
✔
100
Mild Steel
✔ ✔ ✔ ✔
✔
✔ ✔ ✔ ✔ ✔
✔
70
Carbon Steel
✔ ✔
✔
Tool Steel
60
✔ ✔ ✔
✔
%
Grip
50
Cast Iron
✔ ✔ ✔ ✔
✔
✔ ✔ ✔ ✔ ✔
✔
Air Gaps An air gap between the magnet and the load will also affect lifter performance. The chart below shows the general effect on different materials.
1.20
1.00
100
80
0.80
Mild Steel 9% Carbon Steel Mild Steel 9% Carbon Steel Tool Steel Cast Iron Tool Steel Cast Iron
60
0.60
40
0.40
20
0.20
0
0.00
0
0.2
0.5
0.7
1
Air Gap
Effective air gap (mm)
Semi - closed circuit Reduced holding power
As the air gap increases the magnetic performance reduces.
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Premier Rectangular Chuck
Eclipse Magnetics invented the world’s first permanent magnetic chuck in 1934 and we continue to set the benchmark for quality workholding with the Premier Range. Guaranteed to retain their magnetism, the premier chucks are manufactured from high performance materials providing optimum holding power and efficient use of the workholding area.
Robust chrome plated side and end stops For location on product and for fencing in the smaller parts.
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Extended base plate For fixing the chuck to the machine bed with the clamps supplied. (Tee nuts not included).
How it works The chuck is switched on and is in pitch with the top plate B is out of pitch with the top pla
Technical Data
WORKPIECE
Dimensions mm
Product number
Length Height
Width Pole pitch
203 276 322 360 451 601
42 53 63 63 63 63
127 138 151 151 151 201
17.6
AX47/P AX510/P AXS612/P AXS614/P AXS618/P AXM824/P
35 32 32 32 35
ON
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Additional top plates These chucks offer additional top plates. These plates can be mounted on the top of the original and can be fully machined to provide location or nesting of parts. These are generally used as fixtures where they are changed for different components.
Thick all metal top plate • This is a one piece section with steel inserts. • Inserts are fixed with white metal. • Provides high accuracy and ample life for multiple regrinds. • Allows the top plate to be machined and drilled for location on large production runs.*
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* Please consult manufacturer for positioning.
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Removable ergonomic operating handle Handle can be removed once required power is achieved.
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d off by moving the central magnet pack A . When it B magnetism is directed into the workpiece, when it ate magnetism is directed away from the workpiece.
B
A
OFF
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WORKPIECE
Premier Circular Chuck Range
Premier Circular Chuck Ideal for a wide range of applications including inspection, grinding and turning. Ideal for materials from 3mm thick upwards and disc materials.
Concentric guide rings The parallel pole version is manufactured with concentric rings machined into the front face to act as a positional guide for the part prior to clocking.
All metal top plate • This is a one piece section with steel inserts • Inserts are fixed with white metal. • Provides high accuracy and longer life for multiple regrinds. • Allows the top plate to be machined and drilled for location on large production runs
Technical Data
A
E
G
B
BASE
C
D
F
Dimensions mm
Product number
PCD1 E
PCD 2 G
A*
B
C
D
F
AX12C AX9/1C AX61/1C AX475/C
305 229 165 121
76 60 57 45
152
5 5 4 6
184 114 102
M12 M10 M10
254 191 140 102
86 76 51
76
M6
*Reference diameter only
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Premier Radial Pole Chuck Ideal for a wide range of precision grinding and medium/ heavy turning applications, the radial pole is the best option for ring type applications such as inspection and precision grinding. The radial pole is the best option for heavy turning on ring type components. The design concentrates the entire magnetism from the chuck to the point in contact with the workpiece, ensuring excellent hold. The workpiece on this type of chuck should not cover more than 50% of the pole area.
Variable hold on both parallel and radial pole versions (Operating handle can be stopped in any position) Provides option of partial (variable) hold essential for clocking the work concentrically prior to switching to full power.
Through bore All sizes of the radial pole chucks from the 150mm diameter and above are supplied complete with a through bore.
A blanking plug is available for when the bore is not required.*
The bore is ideal for through spindle coolant applications. * N/A for NR100C.
Radial Pole is radially balanced While the switching principle is the same on all of the premier range the radial pole version uses a round magnet pack that rotates to switch. This ensures that the chucks stay in balance when rotating and can be spun up to a maximum of 3000rpm.
Technical Data
H A
E
I
G
B
BASE
C
D
F
Dimensions mm PCD1
Number of Poles
Product number
PCD2
A*
B
C
D E
F
G H
I
NR100C NR150C NR225C NR300C
100 150 225 300
48 69 71 70
51 76 86
6 4 5 5
75
M6
76
n/a
n/a
6
102 M10 102 114 M10 191 184 M12 254
32 50 62
36 54 66
10 14 18
152
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A world leader in magnetic technology
Standard Chuck Range
Available in a choice of 2 pole formats. Both options are manufactured with steel and brass laminations and integral high performance neodymium magnets in the top plate to enhance the performance.
Top plate Rectangular chucks have full width active top plate Both units can be drilled to a depth of 3mm.
Robust chrome plated side and end stops For location on product and fencing in the smaller parts.
Coarse pole
Base plate Recessed ends for fixing the chuck to the machine bed with the clamps supplied. (Tee nuts not included).
Technical Data Rectangular
Dimensions mm
Product number
A
B
STD POLE ERSP1018 ERSP1325 ERSP1530 ERSP1535 ERSP1545 ERSP2060
FINE POLE ERFP1018 ERFP1325 ERFP1530 ERFP1535 ERFP1545 ERFP2060
A
B
C
180 100 255 130 300 150 350 150 450 150 600 200
50 50 50 50 50 50
C
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A world leader in magnetic technology Innovative Magnetic Solutions
Standard chucks are available with a choice of 2 pole spacings:
Fine Pole 1.5mm steel / 0.5mm brass, ideal for thin and small work pieces less than 3mm thick down to 0.7mm.
Standard Pole 4mm steel / 2mm brass, effectively clamping all work pieces above 3mm thick
Performance Both variants produce 80N/cm2 clamping force.
Fixing details Rear drilled and tapped holes with datum locator.
Removable ergonomic operating handle Handle can be removed once the required power is achieved.
Fine pole
A
E G E
B
BASE
D C
Technical Data Circular
F
Dimensions mm
Product number
PCD E 76.2 76.2
PCD G
STD POLE
FINE POLE
A
B
C
D
F
ECSP100 ECSP125 ECSP160 ECSP195 ECSP255 ECSP310 ECSP350
100 125 160 195 255 310 350
50 50 50 50 50 50
50.8 50.8 76.2 76.2
6.35 6.35
M6
n/a
ECFP100 ECFP125 ECFP160 ECFP195 ECFP255 ECFP310 ECFP350
M6 101.6
6.35 101.6 M10 139.7 6.35 101.6 M10 139.7
85.73 6.35 114.3 M10 190.5 152.4 6.35 184.15 M12 254
50 196.85 6.35 196.85 M12 n/a
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Innovative Magnetic Solutions
A world leader in magnetic technology
Workholding Accessories
Chuck blocks Chuck blocks can be used for a number of reasons:- • Transfer magnetism from the top plate of the chuck through to the workpiece. • Support irregular workpieces • Acts to make the top face of the blocks finer pole for thinner workpieces • Provides a magnetic side support for taller products Can be used horizontally or vertically.
Technical Data
Length Width Height
Pole direction
Product number
mm
950
60
75
30
longitudinal* longitudinal*
950V
50 100 40
Supplied in matched and numbered pairs.
*Along width
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'V' blocks ' V' blocks are ideal for holding cylindrical and complex workpieces for marking, spark erosion, grinding and measurement operations. Can be used on its base, side or end. Technical Data
Max. dia. of workpiece Unit Weight Top 'V' Bottom 'V'
Width Length Height
Product number
mm
kg
25 Micron Accuracy E934
70 101.6 95.5 70 101.6 95.5
65 65 65
22 22 22
1.98 3.96 3.12
E934MP
E935
70
80
95.5
MP and MPA= Matched Pair
Table top demagnetiser This is a lightweight unit for the removal of residual magnetism following grinding. Some materials will retain magnetism following long periods of magnetic clamping. The more alloys in the material the more magnetism will be retained.
• Operation is simple, the part is simply drawn across the top plate. • We supply the unit in 2 different voltages, it is important to select the correct voltage for your installation.
Technical Data
Unit Weight
Voltage Width Height Depth
Product number
v
mm
kg
DA955/UK DA955/EUR DB956/EUR
220/240 150 117 220/240 150 117 110 150 117
87 87 87
3.83 3.83 3.83
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Innovative Magnetic Solutions
A world leader in magnetic technology
Other Products In addition to our workholding range, Eclipse Magnetics manufacture a wide range of high performance magnetic products for diverse applications.
Sub-micron filtration for industrial fluids
Lifting and handling systems
Magnetic aids for workshop & general engineering applications
Foreign body removal - separation & detection systems
Heating system filters
Magnetic materials & assemblies
Eclipse Magnetics Worldwide
Europe Atlas Way Sheffield S4 7QQ England
Americas 442 Millen Road, Unit 9, Stoney Creek Ontario, L8E 6H2, Canada T +1 905 664 5585 F +1 905 664 7090 sales@eclipsetoolsinc.com
China No. 168 Chengjian Road Minhang District
Shanghai PR China
T +44 (0)114 225 0600 F +44 (0)114 225 0610 info@eclipsemagnetics.com
T +86 21 6434 8600 *150 F +86 21 6434 6488 szhou@eclipsemagnetics.com
Representative:
www.eclipsemagnetics.com
Eclipse Magnetics Ltd Atlas Way, Sheffield, S4 7QQ, England T +44 (0)114 225 0600 F +44 (0)114 225 0610 info@eclipsemagnetics.com www.eclipsemagnetics.com
While every effort has been made to ensure the accuracy of the information in this publication please note that specifications may change without notice.
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