Max-Air Technology MT04, MT12, MT08, MT16, MT17 User Manual
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TITOLO
MT SERIES ACTUATORS
Aluminum rack and pinion
pneumatic actuators
Max-Air Technology, Inc. 751 Hoff Rd O’Fallon, Missouri 63366
Tel: +1.636.272.4934 Toll Free: 888.842.9998 Fax: 636.272.4937
www.maxairtech.com E-mail: info@maxairtech.com
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FEATURES & BENEFITS
COMPACT DESIGN
The MAX-AIR rack & pinion pneumatic actuator produces
linear torque output in a compact design utilizing the same
body and end caps for double-acting and spring-return
units.
NAMUR MOUNTING
Namur VDI/VDE 3845 and ISO 5211 dimensions on all
sizes. No special blocks are required to mount solenoid
valves, limit switches or positioners.
DEGREE OF TRAVEL
The standard angle of rotation is 90°. Additional travel
rotations through 180° are available. For sizes from MT08
through MT66, Max-Air actuators feature dual travel stops
that provide ± 10° stroke rotation on both the opening and
closing phases of the actuator stroke. 110° of travel in a
standard 90° actuator!
MULTIPLE OUTPUT SHAFTS
The female pinion drive is standard with a double-square
output drive, and optional with a double-D drive, keyed
drive and designs to meet your specific requirements.
HIGH-CYCLE BEARINGS
Shaft bearings isolate the pinion gear from the housing
and support the shaft for high-cycle applications. Many
competitive manufacturers do not provide this critical
feature.
RUGGED TOOTH DESIGN
The pinion teeth are engaged the full length and stroke of
the piston. The pinion height allows manual override without
needing to remove the indicator.
HIGH VISIBILITY POSITION INDICATION
External open/close indicator as standard, available for all
rotations.
HIGH CYCLE-LIFE WEAR PADS
Pistons incorporate double wear pads (skates) to separate
the rack from the actuator wall and serve as both guide and
wear bearings.
SAFE PRE-LOADED SPRING CARTRIDGES
Epoxy-coated special steel springs are pre-loaded with nonmetallic materials. The stainless steel end-cap fasteners
are extra long to allow for spring relaxation. All parts are
corrosion-resistant.
ALTERNATIVE OPERATING MEDIA
Air pressure operation from 2.8 to 10 Bar (40 to 150 PSI).
Water, nitrogen and compatible hydraulic fluids may also be
used to power the actuator.
STAINLESS STEEL FASTENERS
All external fasteners are corrosion-resistant stainless steel.
HONED BORE FOR HIGH CYCLE-LIFE
Extruded aluminum body is internally machined and honed
to exact specifications. Honing prevents dry spots from
forming within the actuator bore and therefore eliminates
premature seal failure —a critical aspect to long cycle-life.
All internal and external surfaces are hard anodized for
corrosion resistance, with all units permanently lubricated
at the factory.
TRACEABILITY
All units are externally marked with a progressive traceable
serial number.
QUALITY ASSURANCE
100% of all units are factory pressure and leak tested, and
individually boxed for shipment.
BEST WARRANTY IN THE INDUSTRY
Max-Air products are covered by our unlimited cycle-life
warranty. Contact your representative for more details.
ACCESSORIES
Max-Air offers a wide range of adapters for many different
types of valves—including butterfly valves, ball valves and
plug valves—as well as a variety of pneumatic and electric
automation accessories suitable for diverse industrial
environments.
Please call for details.
Introducing Lock Mesh™
Max-Air Technology’s high performance Teon ® infused stainless
steel mesh coating, introduced as our “Lock Mesh™” coating
combines the strength and corrosion resistance of stainless
steel with the technological advancements of infused PTFE.
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DOUBLE ACTING TORQUES
40 PSIG 60 PSIG 80 PSIG 100 PSIG 120 PSIG
MT04
MT12
MT08
MT16
MT17
MT21
MT26
MT31
MT36
MT41
MT46
MT51
MT56
MT61
MT66
MT71
MT76
*All torques in inch pounds (in-lbs)
40 60 80 100 120
62 94 125 156 187
110 147 207 259 295
137 206 275 344 412
180 270 360 450 540
250 375 500 625 750
375 562 750 937 1125
500 750 1000 1250 1500
800 1200 1600 2000 2400
1000 1500 2000 2500 3000
1562 2344 3125 3906 4687
2250 3375 4500 5625 6750
3000 4500 6000 7500 9000
4550 6825 9100 11375 13650
6000 9000 12000 15000 18000
11750 17625 23500 29375 35250
15750 23625 31500 39375 47250
START TO
OPEN
START TO
CLOSE
OPERATION REFERENCE DIAGRAM
SPRING RETURNDOUBLE ACTING
OPENING PHASE
AIR IN #4 = PISTONS OPEN
CLOSING PHASE
OPEN
CLOSED START TO
START TO
OPEN
AIR IN #4 = PISTONS OPEN (SPRINGS COMPRESS)
CLOSE
OPENING PHASE
CLOSING PHASE
OPEN
CLOSED
AIR IN #2 = PISTONS CLOSED
Double Acting Operation is also known as “Air to Open, Air to Close” or “Air to Air”.
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AIR FAILURE = PISTONS CLOSE (SPRINGS RELAX)
SPRING RETURN TORQUES MT12-MT41
POS.1
CLOSING TORQUE
POS. 2 OPENING TORQUE
(SPRING) 40 PSIG 60 PSIG 80 PSIG 100 PSIG 120 PSIG
#Springs Start End Start End Start End Start End Start End Start End
1+1 33 22 40 29 72 61 103 92 134 123 165 154
2+2 66 44 – – 50 28 81 59 112 90 143 121
MT12
3+3 99 66 – – – – 58 27 90 66 121 88
1+1 33 20 90 78 127 115 187 175 239 227 275 263
2+2 65 40 70 45 107 82 167 142 219 194 255 230
3+3 98 60 50 13 87 50 147 110 199 162 235 198
MT08
4+4 130 80 – – 67 17 127 77 179 129 215 165
5+5 163 100 – – – – 107 45 159 97 195 133
2+2 75 53 84 62 153 131 222 200 291 269 359 337
3+3 11 2 81 56 25 125 94 194 163 263 232 331 300
4+4 150 107 – – 99 56 168 125 237 194 305 262
MT16
5+5 187 134 – – 72 19 141 88 210 157 278 225
7+5 224 160 – – – – 115 51 184 120 252 188
2+2 93 64 11 6 87 206 177 296 267 386 357 476 447
3+3 139 96 84 41 174 131 264 221 354 3 11 444 401
4+4 185 128 – – 142 85 232 175 322 265 412 355
MT17
5+5 232 160 – – 110 38 200 128 290 218 380 308
7+5 278 192 – – – – 168 82 258 172 348 262
2+2 122 92 158 128 283 253 408 378 533 503 658 628
3+3 184 138 11 2 66 237 191 362 316 487 441 612 566
4+4 245 184 66 5 191 130 316 255 441 380 566 505
MT21
5+5 307 230 – – 145 68 270 193 395 318 520 443
7+5 369 278 – – 97 6 222 131 347 256 472 381
2+2 196 124 251 179 438 366 626 554 813 741 1001 929
3+3 294 185 190 81 377 268 565 456 752 643 940 831
4+4 392 247 – – 315 170 503 358 690 545 878 733
MT26
5+5 490 309 – – 253 72 441 260 628 447 816 635
7+5 588 372 – – – – 378 162 565 349 753 537
2+2 251 187 313 249 563 499 813 749 1063 999 1313 1249
3+3 376 280 220 124 470 374 720 624 970 874 1220 1124
4+4 502 374 – – 376 248 626 498 876 748 1126 998
MT31
5+5 627 467 – – 283 123 533 373 783 623 1033 873
7+5 753 560 – – – – 440 247 690 497 940 747
2+2 412 306 494 388 894 788 1294 1188 1694 1588 2094 1988
3+3 617 461 339 183 739 583 1139 983 1539 1383 1939 1783
4+4 824 614 – – 586 376 986 776 1396 1176 1786 1576
MT36
5+5 1029 767 – – 433 171 833 571 1233 971 1633 1371
7+5 1236 921 – – – – 679 364 1079 764 1479 1164
2+2 505 371 629 495 1129 995 1629 1495 2129 1995 2629 2495
3+3 757 566 444 243 944 743 1444 1243 1944 1743 2444 2243
4+4 1011 741 – – 759 289 1259 989 1759 1489 2259 1989
MT41
5+5 1263 929 – – 572 237 1072 737 1572 1237 2072 1737
7+5 1516 1113 – – – – 887 484 1387 984 1887 1484
*All torques in inch pounds (in-lbs). Spring Return Actuators are also known as “Air to Open, Spring to Close” or “Air to Spring”.
*Actuator drawings may be downloaded at www.maxairtech.com
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SPRING RETURN TORQUES MT46-MT76
POS.1
CLOSING TORQUE
POS. 2 OPENING TORQUE
(SPRING) 40 PSIG 60 PSIG 80 PSIG 100 PSIG 120 PSIG
#Springs Start End Start End Start End Start End Start End Start End
2+2 890 560 1002 672 1784 1454 2565 2235 3346 3016 4127 3797
3+3 1334 840 722 228 1504 1010 2285 1791 3066 2572 3847 3353
4+4 1779 1120 – – 1224 565 2005 1346 2786 2127 3567 2908
MT46
5+5 2224 1399 – – 945 120 1726 901 2507 1682 3288 2463
7+5 2669 1679 – – – – 1446 456 2227 1237 3008 2018
2+2 1101 869 1381 1149 2506 2274 3631 3399 4756 4524 5881 5649
3+3 1652 1304 946 598 2071 1723 3196 2848 4321 3973 5446 5098
4+4 2203 1738 512 47 1637 1172 2762 2297 3887 3422 5012 4547
MT51
5+5 2754 2173 – – 1202 621 2327 1749 3452 2871 4577 3996
7+5 3303 2607 – – 768 72 1893 1197 3018 2322 4143 3447
2+2 1487 1055 1945 1513 3445 3013 4945 4513 6445 6013 7945 7513
3+3 2231 1583 1417 769 2917 2269 4417 3769 5917 5269 7417 6769
4+4 2974 2111 889 26 2389 1526 3889 3026 5389 4526 6889 6026
MT56
5+5 3718 2638 – – 1862 782 3362 2282 4862 3782 6362 5282
7+5 4462 3166 – – 1334 38 2834 1538 4334 3038 5834 4538
2+2 2146 1711 2839 2404 5114 4679 7389 6954 9664 9229 11939 11504
3+3 3220 2566 1984 1330 4259 3605 6534 5880 8809 8155 11084 10430
4+4 4293 3422 1128 257 3403 2532 5678 4807 7953 7082 10228 9657
MT61
5+5 5366 4277 – – 2548 1459 4823 3734 7098 6009 9373 8284
7+5 6438 5133 – – 1692 387 3967 2662 6242 4937 8517 7212
2+2 2810 2084 3916 3190 6916 6190 9916 9190 12916 12190 15916 15190
3+3 4215 3126 2874 1785 5874 4785 8874 7785 11874 10785 14874 13785
4+4 5619 4269 1831 381 4831 3381 7831 6381 10831 9381 13831 12381
MT66
5+5 7024 5211 – – 3789 1976 6789 4976 9789 7976 12789 10976
7+5 8430 6252 – – – – 5748 3570 8748 6570 11748 9570
1+1 2123 1534 10216 9627 16091 15502 21966 21377 27841 27252 33716 33127
2+2 4247 3068 8682 7503 14557 13378 20432 19253 26307 25128 32182 31003
3+3 6370 4602 7148 5380 13023 11255 18898 17130 27773 23005 30648 28880
4+4 8493 6136 5614 3257 11489 9132 17364 15007 23239 20882 29114 26757
5+5 10617 7670 – – 9955 7008 15830 12883 21705 18758 27580 24633
MT71
6+6 12740 9204 – – 8421 4885 14296 10760 20171 16635 26046 22510
7+7 14863 10737 – – – – 12763 8637 18638 14512 24513 20387
8+8 16987 12271 – – – – 11229 6513 17104 12388 22979 18263
1+1 2843 1784 13966 12907 21841 20782 29716 28657 37591 36532 45466 44407
2+2 5686 3569 12181 10064 20056 17939 27931 25814 35806 33689 43681 41564
3+3 8530 5353 10397 7220 18272 15095 26147 22970 34022 30845 41897 38720
4+4 11373 7137 8613 4377 16488 12252 24363 20127 32238 28002 40113 35877
5+5 14216 8922 – – 14703 9409 22578 17284 30453 25159 38328 33034
MT76
6+6 17059 10706 – – 12919 6566 20794 14441 28669 22316 36544 30191
7+7 19902 12490 – – – – 19010 11598 26885 19473 34760 27348
8+8 22746 14275 – – – – 17225 8754 25100 16629 32975 24504
*All torques in inch pounds (in-lbs)
*Actuator drawings may be downloaded at www.maxairtech.com
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