Airtac MAC Stainless Steel Mini Air Cylinder MAC20X270SCA
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC20X270SCA is a genuine double acting + cushion standard round-body mini air cylinder with a Ø20mm bore and 270mm 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
- Stroke270 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 MAC20X270SCA
A 270 mm stroke on a 20 mm bore puts the MAC20X270SCA in the light push-and-lift class: at 0.5 MPa it pushes 157 N and pulls 131.9 N, enough for gates, slides and clamps that travel further than they force. Air drives the rod both ways because this is a double-acting cylinder, and a variable air cushion at each end soaks up end-of-stroke shock so you can run it near the 800 mm/s ceiling without hammering the covers.
The stainless round barrel with its hard-chrome plated 8 mm rod shrugs off mild corrosion and washdown, a genuine edge over painted-steel minis in damp or food-area duty. Every unit ships with a built-in magnet, so CMSG / DMSG / EMSG switches clip on straight from the box, and the CA pivot back cover lets the cylinder swing in a linkage with no extra bracket. If you plan the job around about 94 N of real working force at 0.5 MPa, you leave a healthy margin under the 157 N rating.
Airtac MAC Stainless Steel Mini Air Cylinder MAC20X270SCA Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC20X270SCA |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 270 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 MAC20X270SCA
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×270 | 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 MAC20X270SCA Is Used
Bottling-line lane divider
Pushes a divider blade across the lane to split bottle flow into two lines; 157 N at 0.5 MPa is ample for the blade, and the cushioned ends keep the divider from rattling at line speed.
Sliding guard on a bench punch
Air extends and retracts the guard panel across 270 mm of travel; a CMSG switch on the standard magnet confirms the guard is fully open before the punch cycle starts.
Small-parts lift in an assembly jig
With a 2:1 margin the 20 mm bore raises roughly 8 kg vertically, enough to lift fixture plates or nested parts between assembly stations.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC20X270SCA the Right Cylinder?
Step down to the MAC16X270 if 100.5 N push at 0.5 MPa covers the load, or step up to a 25 mm bore when you need the 245.3 N class. Remember the plain MAC drifts when air is removed - add a rod lock or pilot check valve if the load must stay put. The 8 mm rod over a 270 mm stroke deserves a look at side load: keep it near zero or guide the load externally, and pick FA flange, LB foot or SDB pivot brackets plus I or Y rod knuckles as the frame demands.
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 MAC20X270SCA FAQ
At 0.5 MPa the bore pushes 157 N and pulls 131.9 N. Raise supply to 0.7 MPa and push climbs to 219.8 N (pull 184.7 N). The theoretical maximum is 32 kgf at 1.0 MPa. Run it on 40 um filtered air at 0.15-1.0 MPa (22-145 psi), rod speed 30-800 mm/s, with 1/8" ports and an M8x1.25 male rod thread.
Both ends of the MAC20X270SCA carry variable needle-screw cushions. Back them fully off before the first stroke, then close them gradually until end-of-stroke impact disappears. They only slow the piston near the covers - never treat them as a brake.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac MAC Stainless Steel Mini Air Cylinder MAC20X270SCA
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.