Airtac MAC Stainless Steel Mini Air Cylinder MAC20X225SCA
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC20X225SCA is a genuine double acting + cushion standard round-body mini air cylinder with a Ø20mm bore and 225mm 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
- Stroke225 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 MAC20X225SCA
Cushioned at both ends and double acting throughout, the MAC20X225SCA swings a 225 mm arc with 157 N of extend force at 0.5 MPa, or 219.8 N if you run 0.7 MPa. Its CA pivot back cover takes a clevis pin, so the whole cylinder rocks with the linkage instead of fighting it. Needle screws on each cover trim the air cushion, protecting the covers as you push cycle speed toward 800 mm/s.
Build quality is the quiet selling point: a stainless-steel round barrel roll-riveted to aluminium covers, with a hard-chrome plated rod that resists rust in humid or washdown-adjacent corners. The magnet comes standard in the piston, letting CMSG, DMSG and EMSG switches report stroke position with zero special ordering. Budget about 94 N, six tenths of the 157 N rating, for real work, which lifts roughly 8 kg against gravity with a 2:1 margin.
Airtac MAC Stainless Steel Mini Air Cylinder MAC20X225SCA Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC20X225SCA |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 225 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 MAC20X225SCA
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×225 | 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 MAC20X225SCA Is Used
Sorting gate arm
Swings a light sorting gate across a packaging line lane; the clevis pivot follows the arc while DMSG switches confirm each end position.
Rack tote pusher
Pushes totes onto a storage rack over 225 mm; the 219.8 N available at 0.7 MPa overcomes rail friction with margin to spare.
Weld fixture retract
Retracts a weld fixture clamp arm between tacks; the stainless barrel survives spatter-zone humidity that corrodes painted mini cylinders.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC20X225SCA the Right Cylinder?
If 100.5 N at 0.5 MPa from a MAC16 falls short but a MAC25's 245.3 N is oversized, this 20 mm bore splits the difference. The rod will not lock itself: when air drops or the valve centres, the load coasts, so fit a rod lock or pilot check valve to park it. Over 225 mm an unsupported 8 mm rod bends under side load, so guide externally, mount through the CA clevis with an I or Y knuckle, and add an FA flange or LB foot to square the body.
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 MAC20X225SCA FAQ
Expect 157 N push and 131.9 N pull at 0.5 MPa, rising to 219.8 N push and 184.7 N pull at 0.7 MPa; the theoretical peak is 32.0 kgf at 1.0 MPa. Pressure range is 0.15-1.0 MPa (22-145 psi) with 1.5 MPa (215 psi) proof, speed 30-800 mm/s, and the 1/8 inch ports feed both chambers.
Open both cushion needle screws fully before the first stroke, then close them gradually until the 225 mm stroke decelerates smoothly at each end. This protects the aluminium covers and lets you raise cycle speed within the 30-800 mm/s window without end-of-travel hammering.
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