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Large Air Clutches
Downloads
Contact Twin Disc for Survey Society Approvals and Classifications. Specifications
subject to change without prior notice in the interest of continual product improvement.
- Available in 1, 2 or 3 plate construction
- Unique release spring design
- Integral quick-release valve
- Positive release and positioning of pressure and center plates
- Four oversize release springs, well-removed from heat zone, assure quick, positive release
- Narrower width allows more compact installation
- Heavy, rugged teeth for longer wear life
- Large diaphragm area provides up to 35 percent higher torque capacity
- Trouble-free diaphragm eliminates release drag; field-proven for long life
- Large passages, with cored back plate, assure adequate air-cooling to all parts
LARGE AIR CLUTCH CAPACITY DATA
Clutch
Model |
Work Torque
N-m (lb-ft) |
Max. Slip Torque @ 130 PSI
N-m (lb-ft) |
Max. Safe Operating Speed - Solid Plates
RPM |
| PO-114 |
3813 (2812) |
5084 (3750) |
2400 |
| PO-214 |
7626 (5625) |
10,169 (7500) |
2500 |
| PO-314 |
11,439 (8437) |
15,253 (11,250) |
2500 |
| PO-118 |
7575 (5587) |
10,101 (7450) |
1800 |
| PO-218 |
15,151 (11,175) |
20,202 (14,900) |
1950 |
| PO-318 |
22,726 (16,762) |
30,303 (22,350) |
2050 |
| PO-124 |
17,592 (12,975) |
23,456 (17,300) |
1400 |
| PO-224 |
35,183 (25,950) |
46,911 (34,600) |
1450 |
| PO-324 |
52,775 (38,925) |
70,367 (51,900) |
1450 |
| PO-230 |
66,096 (48,750) |
88,128 (65,000) |
1100 |
| PO-330 |
99,144 (73,125) |
132,192 (97,500) |
1100 |
| PO-236 |
113,075 (83,400) |
150,185 (111,200) |
825 |
| PO-336 |
169,613 (125,100) |
226,150 (166,800) |
1100* |
| PO-342 |
280,654 (207,000) |
374,206 (276,000) |
1100* |
* Steel driving ring.
For best clutch performance when used as:
Master or Operating Clutch – limit use to 75% of maximum input torque and derate for apply pressures less than 130 psi.
Maximum Speeds – The maximum speeds listed in this bulletin are safe permissible speeds possible with cast iron driving rings.
The driving ring is normally the most critical member because it has the largest diameter. It should be remembered that the maximum
speed listed is usually set considerably above the desired operating speed in the average installation.
For more information, download product bulletin.
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