Clamping Module - Single
flanged
12051 ID Xpansion Clamps - Machinable
for clamping internal bores, material: Mild steel
Alternative products you may wish to consider
h1
h2
h3
d1
+0.000|-0.050
| Price & Availability | Article | h1 | h2 | h3 | d1 +0.000|-0.050 | ||||||||||||||||||
| 12051.W0010 | 10.7 | 7.6 | 6.1 | 20.00 | |||||||||||||||||||
£ 55.18 per unit (click for quantity discounts) Ready to despatch 3 Need more? Manufactured within 21 working days from order. Typical UK delivery charge: £13.50. Confirmed at checkout.
h1 10.7 h2 7.6 h3 6.1 d1
+0.000|-0.050 20.00 | |||||||||||||||||||||||
| 12051.W0012 | 21.8 | 16.0 | 15.0 | 29.72 | |||||||||||||||||||
£ 57.66 per unit (click for quantity discounts) Ready to despatch 9 Need more? Manufactured within 21 working days from order. Typical UK delivery charge: £13.50. Confirmed at checkout.
h1 21.8 h2 16.0 h3 15.0 d1
+0.000|-0.050 29.72 | |||||||||||||||||||||||
| 12051.W0014 | 24.9 | 19.0 | 15.0 | 31.50 | |||||||||||||||||||
£ 57.66 per unit (click for quantity discounts) Ready to despatch 10 Need more? Manufactured within 21 working days from order. Typical UK delivery charge: £13.50. Confirmed at checkout.
h1 24.9 h2 19.0 h3 15.0 d1
+0.000|-0.050 31.50 | |||||||||||||||||||||||
| 12051.W0020 | 24.9 | 19.0 | 15.0 | 37.50 | |||||||||||||||||||
£ 61.38 per unit (click for quantity discounts) Ready to despatch 10 Need more? Manufactured within 21 working days from order. Typical UK delivery charge: £13.50. Confirmed at checkout.
h1 24.9 h2 19.0 h3 15.0 d1
+0.000|-0.050 37.50 | |||||||||||||||||||||||
| 12051.W0027 | 28.6 | 22.2 | 17.5 | 50.00 | |||||||||||||||||||
£ 79.71 per unit (click for quantity discounts) Ready to despatch 4 Need more? Manufactured within 21 working days from order. Typical UK delivery charge: £13.50. Confirmed at checkout.
h1 28.6 h2 22.2 h3 17.5 d1
+0.000|-0.050 50.00 | |||||||||||||||||||||||
| 12051.W0035 | 31.8 | 25.4 | 20.6 | 56.00 | |||||||||||||||||||
£ 98.19 per unit (click for quantity discounts) Ready to despatch 1 Need more? Manufactured within 21 working days from order. Typical UK delivery charge: £13.50. Confirmed at checkout.
h1 31.8 h2 25.4 h3 20.6 d1
+0.000|-0.050 56.00 | |||||||||||||||||||||||
| 12051.W0042 | 39.6 | 31.8 | 27.0 | 69.50 | |||||||||||||||||||
£ 125.89 per unit (click for quantity discounts) Ready to despatch 5 Need more? Manufactured within 21 working days from order. Typical UK delivery charge: £13.50. Confirmed at checkout.
h1 39.6 h2 31.8 h3 27.0 d1
+0.000|-0.050 69.50 | |||||||||||||||||||||||
| 12051.W0051 | 39.6 | 31.8 | 27.0 | 75.50 | |||||||||||||||||||
£ 137.96 per unit (click for quantity discounts) Ready to despatch 9 Need more? Manufactured within 21 working days from order. Typical UK delivery charge: £13.50. Confirmed at checkout.
h1 39.6 h2 31.8 h3 27.0 d1
+0.000|-0.050 75.50 | |||||||||||||||||||||||
| 12051.W0077 | 45.5 | 37.6 | 32.3 | 107.50 | |||||||||||||||||||
£ 219.29 per unit (click for quantity discounts) Ready to despatch 5 Need more? Manufactured within 21 working days from order. Typical UK delivery charge: £13.50. Confirmed at checkout.
h1 45.5 h2 37.6 h3 32.3 d1
+0.000|-0.050 107.50 | |||||||||||||||||||||||
| 12051.W0103 | 45.5 | 37.6 | 32.3 | 132.90 | |||||||||||||||||||
£ 265.31 per unit (click for quantity discounts) Ready to despatch 2 Need more? Manufactured within 21 working days from order. Typical UK delivery charge: £13.50. Confirmed at checkout.
h1 45.5 h2 37.6 h3 32.3 d1
+0.000|-0.050 132.90 | |||||||||||||||||||||||
| 12051.W0175 | 45.5 | 37.6 | 32.3 | 132.90 | |||||||||||||||||||
£ 724.78 per unit (click for quantity discounts) Ready to despatch 0 Need more? Manufactured within 21 working days from order. Typical UK delivery charge: £13.50. Confirmed at checkout.
h1 45.5 h2 37.6 h3 32.3 d1
+0.000|-0.050 132.90 | |||||||||||||||||||||||
| 12051.W0250 | 45.5 | 37.6 | 32.3 | 152.40 | |||||||||||||||||||
£ 1,272.36 per unit (click for quantity discounts) Ready to despatch 0 Need more? Manufactured within 21 working days from order. Typical UK delivery charge: £13.50. Confirmed at checkout.
h1 45.5 h2 37.6 h3 32.3 d1
+0.000|-0.050 152.40 | |||||||||||||||||||||||
Weight
g
d3
min.
d4
d5
Stock d2
h4
r1 on PCD
Torque to
max.
Nm
Holding force
kN
Expansion from relaxed dia.
max.
| Price & Availability | Article | Weight g | d3 min. | d4 | d5 | Stock d2 | h4 | r1 on PCD | Torque to max. Nm | Holding force kN | Expansion from relaxed dia. max. | ||||||||||||||||||
| 12051.W0010 | 23 | 4.1 | M 2 | 4.1 | 7.4 | 3.0 | M 2 at 13,7 | 0.7 | 1.1 | 0.1 | |||||||||||||||||||
£ 55.18 per unit (click for quantity discounts) Ready to despatch 3 Need more? Manufactured within 21 working days from order. Typical UK delivery charge: £13.50. Confirmed at checkout.
Weight
g 23 d3
min. 4.1 d4 M 2 d5 4.1 Stock d2 7.4 h4 3.0 r1 on PCD M 2 at 13,7 Torque to
max.
Nm 0.7 Holding force
kN 1.1 Expansion from relaxed dia.
max. 0.1 | |||||||||||||||||||||||||||||
| 12051.W0012 | 59 | 7.1 | M 4 | 7.2 | 12.4 | 5.9 | M 3 at 21,0 | 5.0 | 4.2 | 0.3 | |||||||||||||||||||
£ 57.66 per unit (click for quantity discounts) Ready to despatch 9 Need more? Manufactured within 21 working days from order. Typical UK delivery charge: £13.50. Confirmed at checkout.
Weight
g 59 d3
min. 7.1 d4 M 4 d5 7.2 Stock d2 12.4 h4 5.9 r1 on PCD M 3 at 21,0 Torque to
max.
Nm 5.0 Holding force
kN 4.2 Expansion from relaxed dia.
max. 0.3 | |||||||||||||||||||||||||||||
| 12051.W0014 | 109 | 12.2 | M 6 | 11.2 | 14.2 | 5.9 | M 3 at 23,1 | 17.0 | 8.4 | 0.3 | |||||||||||||||||||
£ 57.66 per unit (click for quantity discounts) Ready to despatch 10 Need more? Manufactured within 21 working days from order. Typical UK delivery charge: £13.50. Confirmed at checkout.
Weight
g 109 d3
min. 12.2 d4 M 6 d5 11.2 Stock d2 14.2 h4 5.9 r1 on PCD M 3 at 23,1 Torque to
max.
Nm 17.0 Holding force
kN 8.4 Expansion from relaxed dia.
max. 0.3 | |||||||||||||||||||||||||||||
| 12051.W0020 | 204 | 13.5 | M 8 | 13.2 | 20.0 | 5.9 | M 3 at 29,0 | 34.0 | 11.1 | 0.4 | |||||||||||||||||||
£ 61.38 per unit (click for quantity discounts) Ready to despatch 10 Need more? Manufactured within 21 working days from order. Typical UK delivery charge: £13.50. Confirmed at checkout.
Weight
g 204 d3
min. 13.5 d4 M 8 d5 13.2 Stock d2 20.0 h4 5.9 r1 on PCD M 3 at 29,0 Torque to
max.
Nm 34.0 Holding force
kN 11.1 Expansion from relaxed dia.
max. 0.4 | |||||||||||||||||||||||||||||
| 12051.W0027 | 213 | 18.0 | M10 | 16.3 | 27.0 | 6.4 | M 4 at 39,4 | 60.0 | 20.0 | 0.4 | |||||||||||||||||||
£ 79.71 per unit (click for quantity discounts) Ready to despatch 4 Need more? Manufactured within 21 working days from order. Typical UK delivery charge: £13.50. Confirmed at checkout.
Weight
g 213 d3
min. 18.0 d4 M10 d5 16.3 Stock d2 27.0 h4 6.4 r1 on PCD M 4 at 39,4 Torque to
max.
Nm 60.0 Holding force
kN 20.0 Expansion from relaxed dia.
max. 0.4 | |||||||||||||||||||||||||||||
| 12051.W0035 | 317 | 23.0 | M12 | 20.3 | 35.3 | 6.4 | M 4 at 45,5 | 150.0 | 26.2 | 0.4 | |||||||||||||||||||
£ 98.19 per unit (click for quantity discounts) Ready to despatch 1 Need more? Manufactured within 21 working days from order. Typical UK delivery charge: £13.50. Confirmed at checkout.
Weight
g 317 d3
min. 23.0 d4 M12 d5 20.3 Stock d2 35.3 h4 6.4 r1 on PCD M 4 at 45,5 Torque to
max.
Nm 150.0 Holding force
kN 26.2 Expansion from relaxed dia.
max. 0.4 | |||||||||||||||||||||||||||||
| 12051.W0042 | 593 | 29.3 | M16 | 21.4 | 42.0 | 7.9 | M 5 at 55,9 | 280.0 | 44.5 | 0.4 | |||||||||||||||||||
£ 125.89 per unit (click for quantity discounts) Ready to despatch 5 Need more? Manufactured within 21 working days from order. Typical UK delivery charge: £13.50. Confirmed at checkout.
Weight
g 593 d3
min. 29.3 d4 M16 d5 21.4 Stock d2 42.0 h4 7.9 r1 on PCD M 5 at 55,9 Torque to
max.
Nm 280.0 Holding force
kN 44.5 Expansion from relaxed dia.
max. 0.4 | |||||||||||||||||||||||||||||
| 12051.W0051 | 775 | 29.3 | M16 | 21.4 | 51.5 | 7.9 | M 5 at 63,9 | 280.0 | 44.5 | 0.4 | |||||||||||||||||||
£ 137.96 per unit (click for quantity discounts) Ready to despatch 9 Need more? Manufactured within 21 working days from order. Typical UK delivery charge: £13.50. Confirmed at checkout.
Weight
g 775 d3
min. 29.3 d4 M16 d5 21.4 Stock d2 51.5 h4 7.9 r1 on PCD M 5 at 63,9 Torque to
max.
Nm 280.0 Holding force
kN 44.5 Expansion from relaxed dia.
max. 0.4 | |||||||||||||||||||||||||||||
| 12051.W0077 | 1826 | 29.3 | M16 | 19.3 | 77.7 | 7.9 | M 6 at 92,6 | 280.0 | 44.5 | 0.4 | |||||||||||||||||||
£ 219.29 per unit (click for quantity discounts) Ready to despatch 5 Need more? Manufactured within 21 working days from order. Typical UK delivery charge: £13.50. Confirmed at checkout.
Weight
g 1826 d3
min. 29.3 d4 M16 d5 19.3 Stock d2 77.7 h4 7.9 r1 on PCD M 6 at 92,6 Torque to
max.
Nm 280.0 Holding force
kN 44.5 Expansion from relaxed dia.
max. 0.4 | |||||||||||||||||||||||||||||
| 12051.W0103 | 2954 | 29.3 | M16 | 19.3 | 103.0 | 7.9 | M 6 at 118,1 | 280.0 | 44.5 | 0.4 | |||||||||||||||||||
£ 265.31 per unit (click for quantity discounts) Ready to despatch 2 Need more? Manufactured within 21 working days from order. Typical UK delivery charge: £13.50. Confirmed at checkout.
Weight
g 2954 d3
min. 29.3 d4 M16 d5 19.3 Stock d2 103.0 h4 7.9 r1 on PCD M 6 at 118,1 Torque to
max.
Nm 280.0 Holding force
kN 44.5 Expansion from relaxed dia.
max. 0.4 | |||||||||||||||||||||||||||||
| 12051.W0175 | 6795 | 29.3 | M16 | 19.3 | 175.0 | 7.9 | M 6 at 118,1 | 280.0 | 44.5 | 0.5 | |||||||||||||||||||
£ 724.78 per unit (click for quantity discounts) Ready to despatch 0 Need more? Manufactured within 21 working days from order. Typical UK delivery charge: £13.50. Confirmed at checkout.
Weight
g 6795 d3
min. 29.3 d4 M16 d5 19.3 Stock d2 175.0 h4 7.9 r1 on PCD M 6 at 118,1 Torque to
max.
Nm 280.0 Holding force
kN 44.5 Expansion from relaxed dia.
max. 0.5 | |||||||||||||||||||||||||||||
| 12051.W0250 | 5436 | 29.3 | M16 | 19.3 | 250.2 | 7.9 | M 6 at 133,4 | 170.0 | 26.0 | 1.0 | |||||||||||||||||||
£ 1,272.36 per unit (click for quantity discounts) Ready to despatch 0 Need more? Manufactured within 21 working days from order. Typical UK delivery charge: £13.50. Confirmed at checkout.
Weight
g 5436 d3
min. 29.3 d4 M16 d5 19.3 Stock d2 250.2 h4 7.9 r1 on PCD M 6 at 133,4 Torque to
max.
Nm 170.0 Holding force
kN 26.0 Expansion from relaxed dia.
max. 1.0 | |||||||||||||||||||||||||||||
Technical & Application
Material
Body: mild steel.
Tapered screw: steel, heat-treated (coated to prevent seizing).
12051.W0250: aluminium (7075-T6) .
Technical Notes
For holding parts on an inside diameter, for high density machining on vertical or horizontal mills.
Diameter can range from 4,1mm to a maximum of 250mm!
This product can also be used as an expanding mandrel on a lathe.
Tighten with hex key or hydraulic pull cylinders.
The flange diameter of the base is held to a close tolerance for precision location in a machined pocket.
Tips
d3 is the minimum diameter the "d2" dimension can be machined or turned down to.
Mounting screws included.
Important Notes
Installation for clamps 12051.W0010 to .W0051.
1. Expand clamp 0,1mm over the relaxed diameter and machine to fit workpiece bore (on lathe or mill).
If using the clamp on a lathe then use the nut provided to tighten the taper screw. This nut is only used to machine the clamp.
2. Machine a pocket in the fixture for the close tolerance "d1" dimension, and drill and tap mounting holes "d4".
3. Drill and tap a hole "d5" in the centre of the pocket for the tapered screw.
4. A recessed dowel pin can be installed into the flange for extra rigidity if required.
5. Range of expansion 0,13 - 0,64mm depending on clamp size.
Installation for clamps 12051.W0077 to .W0250.
1. Insert machining locking ring (provided), tighten taper screw and machine clamp to required bore size.
2. Release taper screw and remove locking ring prior to any machining of workpieces.
Note: 12051.W0175 and W0250 have four mounting holes on PCD as dimension "d4".
Product Datasheets
CAD files
Application images
