Airtac MAC Stainless Steel Mini Air Cylinder MAC20X350SCM
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC20X350SCM is a genuine double acting + cushion standard round-body mini air cylinder with a Ø20mm bore and 350mm 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
- Stroke350 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 MAC20X350SCM
The CM round-end back cover on the MAC20X350SCM lets the rod-side pivot bolt directly to linkages, saving an adapter on long-travel jobs. Behind it sits a variable air cushion at both ends: back the needle screws off on first start-up, then close them gradually until 350 mm of travel at up to 800 mm/s stops softly instead of hammering the covers.
Force sits at 157 N push and 131.9 N pull at 0.5 MPa, backed by a stainless barrel and hard-chrome rod that resist damp and light washdown. If your duty cycle is continuous, size around 94 N of working thrust rather than the full rating, and let the cushion absorb the last-of-stroke spike.
Airtac MAC Stainless Steel Mini Air Cylinder MAC20X350SCM Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC20X350SCM |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 350 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 MAC20X350SCM
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×350 | 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 MAC20X350SCM Is Used
Battery bay divert arm
A pivoting arm diverts trolleys at a charging bay; 94 N of continuous working thrust covers light alloy frames without overheating the seals.
Fixture clamp slide on a drill jig
350 mm of travel slides jigs into position under a drill head; the CM round end pins straight to the jig link, no bracket machining needed.
Pick-to-light bin pusher
Ejects totes off a gravity rack lane at up to 800 mm/s, with cushions easing the tote into the pick bin instead of cracking it against the stop.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC20X350SCM the Right Cylinder?
If 100.5 N from a 16 mm bore is short and 245.3 N from the 25 mm is more than the job needs, this 20 mm cylinder's 157 N sits in the middle. Note that a standard MAC cannot park under load - centred valve or lost air means drift - so add a rod lock for positive holding. Over 350 mm of stroke even small misalignment compounds; align the clevis axis and use guides for anything but pure axial force.
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 MAC20X350SCM FAQ
Push is 157 N and pull 131.9 N at 0.5 MPa; at 0.7 MPa push rises to 219.8 N and pull to 184.7 N; theoretical peak is 32 kgf at 1.0 MPa. The cylinder is double acting with a variable cushion at both ends, runs 30-800 mm/s on air filtered to 40 um, and uses a 1/8" port in PT, G or NPT.
The magnet is built into the piston as standard on every MA-series cylinder, so CMSG, DMSG or EMSG switches simply clamp onto the barrel for end-of-stroke signals - no special-order piston, no price bump. The cylinder itself runs on 0.15-1.0 MPa (22-145 psi).
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1-Year Warranty
Covers non-human-caused product damage.
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