Airtac MAC Stainless Steel Mini Air Cylinder MAC20X250SCA
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC20X250SCA is a genuine double acting + cushion standard round-body mini air cylinder with a Ø20mm bore and 250mm stroke, 1/8" 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.
- BoreØ20 mm
- Stroke250 mm
- Port size1/8"
- Acting typeDouble acting + cushion
- Rod threadM8×1.25
- CushionVariable air cushion, both ends
About the Airtac MAC Stainless Steel Mini Air Cylinder MAC20X250SCA
At 250 mm of stroke, this MAC20X250SCA is the longest travel among the 20 mm cushioned rounds here, still delivering 157 N at 0.5 MPa (131.9 N on retract) with a dialable air cushion at each end. Double acting means air, not a spring, does the return.
Inside sits the same riveted stainless barrel and hard-chrome carbon-steel rod found across the MA range, comfortable in damp workshops where painted barrels blister. Its vertical-lift equivalent near 16 kg is best used at around 8 kg for real loads, leaving the cushions free to decelerate the arm instead of stalling under it.
Airtac MAC Stainless Steel Mini Air Cylinder MAC20X250SCA Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC20X250SCA |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 250 mm |
| Acting type | Double acting + cushion |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| 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 (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | 185 N |
| Max (@1.0 MPa) | 32 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 MAC20X250SCA
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×250 | 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 MAC20X250SCA Is Used
Chute gate
Swings a sliding gate across a gravity-fed order-picking chute, the 250 mm travel covering the full gate width in one move.
Film tension arm
Keeps a follower arm bearing against film on a wrapping head, the 131.9 N retract pull holding contact through the whole coil.
Snap press
Pushes snap fasteners into webbing straps on a small bench press, about 94 N of working force arriving at the die.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC20X250SCA the Right Cylinder?
Match against neighbours: a 16 mm bore delivers 100.5 N at 0.5 MPa, this 20 mm gives 157 N, and a 25 mm steps up to 245.3 N. Should the swing arm need to hold mid-travel, note that a plain MAC releases when pressure goes - a rod lock or pilot check valve is the answer. The CA pivot pairs with SDB brackets for swing duty; FA flange and LB foot cover fixed frames. With 250 mm of travel, watch rod alignment so side loads stay off the chrome surface.
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 MAC20X250SCA FAQ
157 N push and 131.9 N pull at 0.5 MPa; 219.8 N push and 184.7 N pull at 0.7 MPa; 32 kgf theoretical maximum at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi) with a proof pressure of 1.5 MPa (215 psi).
The pivot eyes take clevis links and SDB pivot brackets directly for swing-arm duty; if the frame changes to a fixed mount, FA flange or LB foot brackets plus I or Y rod knuckles fit the same body without adapters.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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