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Design
Self-contained design with built-in air cylinder. Air is supplied to the chuck by a multi passage air tube assembly with a rotary coupling. Coolant through the spindle capability is standard.

Application
OD and ID chucking for cylindrical grinding, turning, and hard turning. Ideal for workpieces requiring high concentricity, and/or close round ness. Ideal for fragile parts which are easily distorted, and applications requiring high spindle speeds.
MBS/L Air Operated Diaphragm Chuck
MBS/L Air Operated Diaphragm Chuck dwg
Unit of Measure
Items MBS/L Air Operated Diaphragm Chuck
MBS/L-80
MBS/L Air Operated Diaphragm Chucks
MBS/L Air Operated Diaphragm Chuck
MBS/L-100
MBS/L Air Operated Diaphragm Chucks
MBS/L Air Operated Diaphragm Chuck
MBS/L-125
MBS/L Air Operated Diaphragm Chucks
MBS/L Air Operated Diaphragm Chuck
MBS/L-150
MBS/L Air Operated Diaphragm Chucks
MBS/L Air Operated Diaphragm Chuck
MBS/L-200
MBS/L Air Operated Diaphragm Chucks
Chuck Size N/A 3.19 in80 mm N/A 4.02 in102 mm N/A 5.00 in127 mm N/A 5.98 in152 mm N/A 8.03 in204 mm
Repeating Accuracy N/A .0001 in.0025 mm
No. of Jaws N/A 6
Jaw Stroke1 N/A .060 in1.5 mm
Max. Jaw Force N/A 510 lbf232 kgf N/A 1,560 lbf709 kgf N/A 3,640 lbf1,655 kgf N/A 6,090 lbf2,768 kgf N/A 10,950 lbf4,977 kgf
Max. Air Pressure N/A 100 psi7.1 kg/cm²
Max. rpm2 N/A 8,000 N/A 7,000 N/A 6,500 N/A 6,000 N/A 4,500
Weight3 N/A 3.3 lb1.5 kg N/A 6.5 lb3.0 kg N/A 10.4 lb4.7 kg N/A 14.3 lb6.5 kg N/A 29.1 lb13.2 kg
A Dimension N/A 3.19 in81 mm N/A 4.02 in102.1 mm N/A 5.00 in127 mm N/A 5.98 in152 mm N/A 8.03 in204 mm
B Dimension N/A 2.000 in50.8 mm N/A 3.249 in82.5 mm N/A 3.937 in100 mm N/A 4.920 in125 mm N/A 6.600 in167.6 mm
C Dimension N/A .750 in19 mm N/A .750 in19 mm N/A .750 in19 mm N/A .750 in19 mm N/A 1.187 in30 mm
D Dimension N/A .51 in13 mm N/A .50 in12.7 mm N/A .34 in8.6 mm N/A .46 in11.7 mm N/A .43 in10.9 mm
E Dimension N/A .060 in1.5 mm N/A .060 in1.5 mm N/A .120 in3 mm N/A .120 in3 mm N/A .125 in3.2 mm
F Dimension N/A 1.77 in45 mm N/A 2.21 in56.1 mm N/A 2.28 in57.9 mm N/A 2.19 in55.6 mm N/A 2.48 in63 mm
G Dimension N/A 3.50 in88.9 mm N/A 4.33 in110 mm N/A 5.35 in135.9 mm N/A 6.38 in162.1 mm N/A 8.46 in214.1 mm
H Dimension N/A 2.750 in69.9 mm N/A 3.500 in88.9 mm N/A 43409 in112 mm N/A 5.350 in135.9 mm N/A 7.200 in182.9 mm
J Dimension N/A M5 N/A M5 N/A M6 N/A M6 N/A M10
Item No. N/A 41 080 001 N/A 41 100 001 N/A 41 125 011 N/A 41 150 001 N/A 41 200 001
Ordering Information N/A MMR Diaphragms, AAS Part Stop Spiders and SMR Blank Top Jaws are not included Diaphram Chucks but are standard equipment.
  • 1 Jaw stroke on diameter with 1.50" high top jaws
  • 2 Max. rpm is influenced by air pressure applied and weight of top jaws
  • 3 Without top jaws