Airtac MAC Stainless Steel Mini Air Cylinder MAC20X260SCM
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC20X260SCM is a genuine double acting + cushion standard round-body mini air cylinder with a Ø20mm bore and 260mm 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
- Stroke260 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 MAC20X260SCM
A round-end (CM) back cover on the MAC20X260SCM gives fixture builders a compact pin-on fixing when a full pivot eye is unnecessary. The cylinder is double acting with a variable cushion at both ends, so end-of-stroke impact can be tuned down with the needle screws. Its round body is a riveted stainless tube over aluminium covers - a construction that shrugs off condensation, splashes and mild chemicals far better than painted-steel minis.
Force output at this bore: 157 N push and 131.9 N pull at 0.5 MPa, climbing to 219.8 N at 0.7 MPa. Derate to around 94 N for real work and you keep a comfortable margin, enough to lift roughly 8 kg vertically at 2:1. The magnet is fitted as standard, so CMSG, DMSG and EMSG switches mount without any special-order piston.
Airtac MAC Stainless Steel Mini Air Cylinder MAC20X260SCM Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC20X260SCM |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 260 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 MAC20X260SCM
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×260 | 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 MAC20X260SCM Is Used
Bottle reject pusher
Fires off-spec PET bottles into a reject bin from under the rail; the round-end CM cover pins flush in tight conveyor framing, and the cushion prevents bottle bounce.
Film-tail clamp on a stretch wrapper
Clamps the film tail at the start of a wrap cycle; 157 N at 0.5 MPa grips reliably and the stainless body tolerates humid warehouse air.
CNC bar-feeder stop
Stops and positions bar stock at a CNC lathe magazine; the DMSG switch on the standard magnet signals the fully retracted home position.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC20X260SCM the Right Cylinder?
On the 0.5 MPa push ladder, bore 16 reaches 100.5 N, bore 20 hits 157 N here, and bore 25 delivers 245.3 N. When a suspended load must wait mid-stroke, remember air is not stored - the piston coasts, so add a rod lock or pilot check valve. The CM round-end cover accepts a fixed pin; switch to FA flange, LB foot or SDB pivot mounting if the frame demands it. Keep side loads off the 8 mm rod at this stroke length with external guides or dual rails.
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 MAC20X260SCM 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, with a theoretical maximum of 32.0 kgf at 1.0 MPa. Supply 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), speed 30-800 mm/s, 1/8" ports, M8x1.25 rod thread.
Yes in wet or dusty zones. The riveted stainless tube plus the hard-chrome plated 8 mm rod resist corrosion and washdown where painted bodies chip and seize, and the round CM end cover still pins to standard fixture holes. Cushion needles at both ends dial out the residual shock.
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