Airtac MAC Stainless Steel Mini Air Cylinder MAC50X400SCA
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC50X400SCA is a genuine double acting + cushion standard round-body mini air cylinder with a Ø50mm bore and 400mm 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.
- BoreØ50 mm
- Stroke400 mm
- Port size1/4"
- Acting typeDouble acting + cushion
- Rod threadM14×1.5
- CushionVariable air cushion, both ends
About the Airtac MAC Stainless Steel Mini Air Cylinder MAC50X400SCA
Four hundred millimetres of cushioned travel in a round stainless body: the AirTAC MAC50X400SCA is a double acting 50 mm bore mini cylinder whose variable air cushion is tuned separately at each end to soak up end-of-stroke shock. At 0.5 MPa it develops 981 N of push and 881 N of pull; at 0.7 MPa push reaches 1374 N, and the theoretical ceiling at 1.0 MPa sits near 200 kgf. The CA pivot back cover suits linkages that arc through the stroke.
At this length the build matters. The stainless barrel is riveted to the aluminium covers in one rolled joint with nothing to loosen, and the surface takes condensation and washdown mist that would corrode a painted body. The 16 mm hard-chrome rod glides across the full 400 mm at 30-800 mm/s, and because the magnet is standard, CMSG / DMSG / EMSG switches report mid-stroke positions without ordering a special piston. Budget around 589 N for actual work at 0.5 MPa and the sizing stays honest against friction and pressure dips.
Airtac MAC Stainless Steel Mini Air Cylinder MAC50X400SCA Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC50X400SCA |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø50 mm |
| Stroke | 400 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.
Theoretical Output Force (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 881 N |
| 0.7 MPa | 1374 N | 1234 N |
| Max (@1.0 MPa) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac MAC Stainless Steel Mini Air Cylinder MAC50X400SCA
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 50 | Bore size in mm. |
| ×400 | 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.
Where the Airtac MAC Stainless Steel Mini Air Cylinder MAC50X400SCA Is Used
Lift gate on a paint booth
Raising a counterbalanced booth door 400 mm; at 981 N push the bore lifts about 50 kg vertically with a 2:1 margin, so a modest counterweight covers the rest.
Case elevator between two conveyor levels
The 400 mm stroke lifts cartons from a low infeed up to a mezzanine take-away belt, with both-end cushioning settling each case gently onto the upper shelf.
Sample rack indexer on a lab automation line
A pivoting arm steps racks one station every few seconds; the stainless barrel takes the frequent wipe-downs demanded in laboratory settings without corrosion.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC50X400SCA the Right Cylinder?
Size down to a 40 mm bore (628 N push at 0.5 MPa) when the load is light, or up to 63 mm (1558 N) for heavy gates; the 50 mm holds the middle at 981 N. On a 400 mm stroke, guide the load externally - the 16 mm rod should not carry side force or the bushing wears early. Remember the cylinder has no holding function: a centred valve or lost air lets the piston drift, so specify a rod lock or pilot check valve where a mid-stroke load must stay. The magnet is standard, and FA flange, LB foot or SDB pivot brackets complement the CA pivot cover.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) is standard for sensors
- ✓ Back cover (CA/U/CM) & mount (FA/LB/SDB)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Do not dismantle the riveted front/back covers.
- check On first run, back off the cushion screws and release gradually.
- check Installation by qualified personnel per AirTAC docs.
Airtac MAC Stainless Steel Mini Air Cylinder MAC50X400SCA FAQ
At 0.5 MPa: 981 N push and 881 N pull. At 0.7 MPa: 1374 N push and 1233 N pull. The theoretical maximum at 1.0 MPa is about 200 kgf. The cylinder runs on filtered air at 0.15-1.0 MPa (22-145 psi) and 30-800 mm/s, with 1/4 inch ports and an M14x1.5 male thread on the 16 mm rod.
Each cover carries a needle-adjusted cushion chamber. On first run, back both cushion screws fully off, then close them gradually until end-of-stroke impact disappears - that lets the 981 N piston stop 400 mm of moving mass without hammering the covers. Keep the two sides adjusted symmetrically so extend and retract timing stay matched.
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