
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC63X300SCM is a genuine double acting + cushion standard round-body mini air cylinder with a Ø63mm bore and 300mm 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.
The MAC63X300SCM pairs the largest bore in AirTAC's MA round-body family with a 300 mm stroke. Double acting and fitted with a variable air cushion at both ends, it turns 0.5 MPa (72 psi) into 1557.9 N of pushing force - roughly 159 kgf at the rod - enough to eject, press or move heavy jigs at up to 800 mm/s. The 63 mm barrel runs 1/4" ports and an M14x1.5 male rod thread on a 16 mm hard-chrome plated rod.
Because the stainless-steel barrel is rolled onto aluminium covers with no tie rods to retighten, the body stays sealed in washdown corners, damp workshops and outdoor machinery alike. Working at 0.5 MPa, plan on about 935 N of useful force rather than the full 1558 N rating - that keeps the cushion working and the covers hammer-free. A lift check: the rod can raise roughly 79 kg vertically with a 2:1 margin, so matching a 60-70 kg part weight is comfortable. The magnet is built in as standard, so CMSG, DMSG or EMSG switches clip straight on.
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC63X300SCM |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø63 mm |
| Stroke | 300 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. |
| ×300 | 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.
Pushes pressed brackets off a small forming die on a mechanical press line, with the 300 mm stroke clearing the die space between cycles.
Swings or shoves 60-80 kg pallets across a heavy conveyor lane; the CA pivot back cover connects directly to the diverter linkage.
Moves the safety gate arm on a forklift battery bay, where the stainless barrel copes with the damp, occasionally washed charging area.
At 1558 N push and 1457 N pull at 0.5 MPa, this is the top force class of the MA series; if your load needs under 981 N at 0.5 MPa, the 50 mm bore saves air and money. This 300 mm stroke is inside the 500 mm standard limit, so no made-to-order pricing applies. With the air off or the valve centred the rod drifts freely - add a rod lock or pilot check valve where a load must stay put.
The CA pivot back cover bolts straight into swinging linkages and toggle clamps without a separate bracket; FA flange, LB foot or SDB pivot plates cover fixed mountings. On a 300 mm stroke, guide the load externally so side load stays off the 16 mm rod.
Quick checklist
At 0.5 MPa it pushes 1557.9 N and pulls 1457.4 N. Raise supply to 0.7 MPa and those become 2181.0 N push and 2040.3 N pull. The theoretical maximum at 1.0 MPa is 317.7 kgf. The bore is 63 mm, the rod 16 mm, ports are 1/4" and the rod thread is M14x1.5. Speed range is 30-800 mm/s and working pressure 0.15-1.0 MPa (22-145 psi).
The SCM suffix means a CA pivot back cover, so the cylinder swings with the machine linkage out of the box. FA flange, LB foot and SDB pivot brackets suit fixed mountings. Position feedback needs no special order: the magnet is standard, and CMSG, DMSG or EMSG reed switches slide onto the stainless barrel and lock at any point along the 300 mm stroke.
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