
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC63X350SU is a genuine double acting + cushion standard round-body mini air cylinder with a Ø63mm bore and 350mm stroke, 1/4" 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.
A riveted stainless round barrel with a hard-chrome plated 16 mm rod makes the MAC63X350SU a strong pick where painted mini cylinders corrode - washdown bays, outdoor gates, damp food lines. Double acting with a variable air cushion at both ends, it pushes 1558 N and pulls 1457 N at 0.5 MPa, rising to 2181 N at 0.7 MPa. Plan on roughly 935 N of usable work at 0.5 MPa so the seals keep a comfortable margin.
The 350 mm stroke covers long transfers at 30-800 mm/s, and because the magnet is built in as standard, CMSG, DMSG or EMSG switches mount straight on the barrel for end-of-travel sensing. Ports are 1/4-inch (PT blank, or G / NPT), rod thread M14x1.5, proof pressure 1.5 MPa (215 psi). The flat-end U back cover bolts directly to a fixed plate - no adapter bracket needed.
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC63X350SU |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø63 mm |
| Stroke | 350 mm |
| Acting type | Double acting + cushion |
| Port size | 1/4" |
| Rod thread | M14×1.5 |
| 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 | 1559 N | 1458 N |
| 0.7 MPa | 2182 N | 2041 N |
| Max (@1.0 MPa) | 318 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). |
|---|---|
| 63 | Bore size in mm. |
| ×350 | 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.
Kicks cooled aluminium extrusion lengths off the run-out table at the saw, where the long 350 mm stroke clears the full drop zone.
Slides a divert gate across a pallet conveyor lane; the 1558 N push keeps the gate moving against chain back-pressure.
Raises a 70 kg welding fixture deck on changeover; at a 2:1 margin the bore handles about 79 kg vertical.
Against a 50 mm bore that pushes 981 N at 0.5 MPa, this 63 mm barrel nearly doubles the force at 1558 N; there is no larger bore in the MAC range, so heavier jobs move up to a bigger cylinder series. With a 2:1 margin it lifts about 79 kg vertically - match that against your part and fixture weight before committing. Over 350 mm of travel the 16 mm rod tolerates almost no side load, so guide the load on linear rails and let the cylinder push only. Remember the piston drifts if air is lost; a rod lock or pilot check valve holds it. Add FA flange or LB foot mounts if the flat-end cover alone does not suit the frame.
Quick checklist
At 0.5 MPa it pushes 1558 N and pulls 1457 N; at 0.7 MPa push rises to 2181 N. Theoretical maximum output is 318 kgf at 1.0 MPa. Keep real work loads near 935 N to preserve service life.
Back both needle screws fully off, then close them gradually until end-of-stroke knock disappears. The cushion is variable air, not a lock - it slows the last millimetres but the piston still drifts when air is removed.
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Covers non-human-caused product damage.
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