Airtac MAC Stainless Steel Mini Air Cylinder MAC50X20SCA
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC50X20SCA is a genuine double acting + cushion standard round-body mini air cylinder with a Ø50mm bore and 20mm 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
- Stroke20 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 MAC50X20SCA
Twenty millimetres of stroke is all a gripper, clamp or index pin usually needs, and the MAC50X20SCA supplies it from a 50 mm bore that pushes 981 N and pulls 881 N at 0.5 MPa (1374 N at 0.7 MPa). Double acting with a variable air cushion at both ends, it rides on a CA pivot cover made for link and lever mechanisms.
The rolling-packed stainless body - barrel, aluminium covers and stainless block - stays sealed where painted minis bubble and flake. The magnet is included as standard, so CMSG, DMSG or EMSG switches signal the 20 mm positions without a special-order piston. In practice, plan on about 589 N of working force at 0.5 MPa; vertically that corresponds to lifting roughly 50 kg with a 2:1 margin.
Airtac MAC Stainless Steel Mini Air Cylinder MAC50X20SCA Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC50X20SCA |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø50 mm |
| Stroke | 20 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 MAC50X20SCA
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 50 | Bore size in mm. |
| ×20 | 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 MAC50X20SCA Is Used
Weld-fixture swing clamp
Closes a swing clamp on a car-door fixture; 981 N at 0.5 MPa holds the panel while robots weld, and the pivot cover follows the clamp arm.
Thermoformer index pin
Pops an index pin into a tray nest each cycle; the 20 mm stroke keeps air use and cycle time minimal on high-speed tooling.
Rotary table lock
Locks an indexing rotary table between cuts; 881 N of pull retracts the locking pin the instant the valve shifts.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC50X20SCA the Right Cylinder?
Need less force? The 40 mm bore gives 628 N at 0.5 MPa. Need a longer reach in the same 50 mm force class? Standard strokes run to 500 mm. The 20 mm stroke here suits short clamp moves; still guide the load, because a short-stroke cylinder tolerates side load poorly at the 16 mm rod. Ports are 1/4" with an M14x1.5 rod thread. If the clamp must survive an air loss, add a pilot check valve - the cushion only softens the stop and never locks the load.
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 MAC50X20SCA FAQ
Push 981.3 N and pull 880.8 N at 0.5 MPa; push 1373.8 N and pull 1233.1 N at 0.7 MPa; 200.1 kgf theoretical maximum at 1.0 MPa. The 20 mm stroke, 1/4" ports and 0.15-1.0 MPa (22-145 psi) operating band come from the same bore-50 datasheet row, with 1.5 MPa (215 psi) proof pressure.
The MAC carries a variable air cushion, not a fixed bumper. On first run, back both needle screws off, then close them gradually until the 20 mm stroke decelerates smoothly anywhere in the 30-800 mm/s range. If the load must be held after an air loss, a rod lock or pilot check valve does that job - the cushion never acts as a brake.
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