
The AirTAC Airtac B01-MAC Series Special Purpose Cylinder B01-MAC20X280SU is a genuine double acting + cushion standard round-body mini air cylinder with a Ø0mm bore and 280mm stroke, PT/G air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service. A variable air cushion at both ends lets you tune end-of-stroke deceleration on site.
Flat-end fixing and a 280 mm throw make the MAC20X280SU easy to bolt direct to a fixture: the U back cover presents a flat face for clamps and brackets. Push is 157 N and pull 131.9 N at 0.5 MPa, in a double-acting body whose adjustable cushion pads both dead points, so strokes at up to 800 mm/s finish clean. A rolled stainless barrel with a hard-chrome plated carbon-steel rod takes repeated washdowns without flaking paint - a practical edge over coated minis in damp plants.
The piston magnet is included as standard, letting CMSG, DMSG or EMSG reed switches bolt straight to the barrel for stroke signalling. Derate sensibly: treat about 94 N of the 157 N rating as usable work at 0.5 MPa and the cylinder will run cooler and last longer on continuous duty.
| Model | Airtac B01-MAC Series Special Purpose Cylinder B01-MAC20X280SU |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø0 mm |
| Stroke | 280 mm |
| Acting type | Double acting + cushion |
| Port size | PT/G |
| Rod thread |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Variable air cushion, both ends |
| Max standard stroke | Up to 500 mm |
Specifications follow the official AirTAC MA-series datasheet. Barrel: stainless-steel tube (round-body, riveted rolling-packed construction); piston rod: carbon steel with 20µm hard-chrome plating; covers: aluminium alloy. Thread options: PT (blank) / G / NPT. Every MA-series cylinder ships with a built-in magnet for CMSG / DMSG / EMSG position sensors.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 0 N | 0 N |
| 0.7 MPa | 0 N | 0 N |
| Max (@1.0 MPa) | 0 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 0 | Bore size in mm. |
| ×280 | Stroke length in mm. |
| -S | Built-in magnet for CMSG / DMSG / EMSG sensors (standard on MA series). |
| CA / U / CM | Back-cover type: CA pivot, U flat-end, CM round-end. |
MA-family variants: MA / MAC (double acting ±cushion), MSA / MTA (single acting push / pull), MAD / MACD (double rod ±cushion), MAJ / MACJ (adjustable stroke ±cushion), MAR (cushioned with integrated F/U mount). Mounting accessories: FA flange, LB foot, SDB pivot; plus I and Y knuckles. Thread PT (blank) / G / NPT.
Bolted flat to a small staking fixture, it presses terminals into PCB connectors with 157 N of push at 0.5 MPa.
Clamps and releases a dial-gauge fixture in a quality lab, 280 mm of travel clearing the part for manual loading.
Nudges picked totes off a shelf conveyor into an audit lane, the end cushions keeping the stop quiet on night shifts.
Downsize to bore 16 (100.5 N push at 0.5 MPa) for lighter flaps and gates; upsize to bore 25 (245.3 N push) when the work heads past 150 N continuous. Remember the MAC cannot park a load on its own - with supply lost or the valve centred the rod creeps - so a rod lock or pilot check valve is the fix for held positions. The U flat-end cover suits rigid, non-pivoting frames; if the machine needs a swinging link, pick the CA pivot cover instead, or add FA flange, LB foot and SDB bracket hardware. On a 280 mm stroke, align the load axis carefully so the 8 mm rod carries thrust, not bending.
Quick checklist
At 0.5 MPa you get 157 N push and 131.9 N pull. At 0.7 MPa it is 219.8 N push and 184.7 N pull, and the theoretical ceiling is 32 kgf at 1.0 MPa. Run it on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), with rod speed 30-800 mm/s. Double acting, cushioned at both ends.
The U back cover gives a flat end for direct bolting to plates and fixtures. Where the frame needs more, AirTAC offers FA flange, LB foot and SDB pivot brackets plus I and Y rod knuckles, and back covers can be swapped to CA pivot or CM round-end styles to match a swinging linkage.
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Covers non-human-caused product damage.
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