Airtac MAC Stainless Steel Mini Air Cylinder MAC50X400SCM
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC50X400SCM 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 MAC50X400SCM
The CM round-end back cover is the reason to pick the MAC50X400SCM: a rounded boss that seats directly into pivot brackets and clevis-style linkages over a 400 mm stroke. Behind that fitting sits the AirTAC 50 mm bore round mini cylinder, double acting with an adjustable air cushion at each end, rated 981 N push and 881 N pull at 0.5 MPa and 1374 N push at 0.7 MPa - about 200 kgf at the 1.0 MPa theoretical limit.
Construction follows the AirTAC signature: a stainless barrel riveted to aluminium covers, a hard-chrome plated 16 mm rod, and grease-retaining two-way piston seals. That sealed stainless body survives humidity, splash and outdoor exposure that rust painted mini cylinders within a season. The piston magnet is included as standard for CMSG / DMSG / EMSG switches, and tuning the cushions to the load means the 400 mm gap can be closed at up to 800 mm/s and still land quietly. As a working figure, expect about 589 N of dependable force at 0.5 MPa rather than the full rating.
Airtac MAC Stainless Steel Mini Air Cylinder MAC50X400SCM Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC50X400SCM |
|---|---|
| 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 MAC50X400SCM
| 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 MAC50X400SCM Is Used
Battery-change clamp on an AGV dock
A linkage with a round-end pivot swings a clamp arm against forklift battery packs during automated changeover; about 589 N of working force at 0.5 MPa holds the pack while connectors mate.
Roller-lift spur in a sortation hub
The 400 mm stroke raises a powered roller section to divert parcels between lanes, and cushioning at both ends stops the loaded spur crashing down at cycle end.
Spray deflector on a stone-cutting line
Positions a water-spray deflector in a granite workshop, where the stainless body resists the constant mist that corrodes painted actuators within months.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC50X400SCM the Right Cylinder?
Weigh the alternatives: the 40 mm bore delivers 628 N push at 0.5 MPa for lighter doors, the 63 mm bore 1558 N for heavy gates - the 50 mm holds the middle at 981 N. Across a 400 mm stroke the rod is exposed along its whole length, so carry the load in linear guides and keep side force off the chrome rod. When air is cut or the valve centres, nothing holds the piston; a rod lock or pilot check valve is the answer for loads that must stay put. If a clevis pin is not the mount you need, the CA pivot and U flat-end covers plus FA flange, LB foot and SDB brackets cover the rest.
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 MAC50X400SCM FAQ
Push 981 N and pull 881 N at 0.5 MPa; push 1374 N and pull 1233 N at 0.7 MPa; roughly 200 kgf theoretical maximum at 1.0 MPa. Pressure range 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-800 mm/s, temperature -20 to +70 C. The 50 mm bore fixes the 1/4 inch ports and the M14x1.5 rod thread.
No - the magnet is built into the piston on every MAC cylinder as standard, so CMSG / DMSG / EMSG switches clip onto the stainless barrel for position sensing with no special-order piston. The CM round-end cover takes a pivot pin directly, and FA flange, LB foot or SDB pivot brackets are available if the machine calls for a fixed mount instead.
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