Airtac MAC Stainless Steel Mini Air Cylinder MAC20X65SCM
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC20X65SCM is a genuine double acting + cushion standard round-body mini air cylinder with a Ø20mm bore and 65mm 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
- Stroke65 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 MAC20X65SCM
Riveted together from a stainless-steel barrel, aluminium covers and a stainless block, the MAC20X65SCM resists the mild corrosion that flakes painted mini cylinders in damp or washdown corners. This 20 mm bore, 65 mm stroke version is double acting with a variable air cushion at both ends: 157 N push and 131.9 N pull at 0.5 MPa, rising to 219.8 N at 0.7 MPa.
The CM round-end back cover takes a nose mount or bracket directly on its turned end, and the standard-built magnet accepts CMSG, DMSG or EMSG switches without ordering a special piston. For sizing, treat about 94 N as the practical work force at 0.5 MPa - roughly an 8 kg vertical lift with a 2:1 margin - and enjoy the cleaner look of the turned cover next to visible fasteners.
Airtac MAC Stainless Steel Mini Air Cylinder MAC20X65SCM Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC20X65SCM |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 65 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 MAC20X65SCM
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×65 | 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 MAC20X65SCM Is Used
Carton flap tuck
Tucking top flaps on small cartons in an e-commerce pack cell; the 65 mm stroke spans the flap width and 94 N of working force seats them.
Spool feeder advance
Advancing wire spools into a feed nest on a harness line, with the cushion stopping the spool crashing home at full travel speed.
Bin lid opener
Pushing open plastic bin lids on a picking station return stroke; the round CM end screws into a simple nose bracket on the frame.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC20X65SCM the Right Cylinder?
If your load needs under 100.5 N at 0.5 MPa the 16 mm bore is lighter on air; over 200 N and the 25 mm bore (245.3 N) is the better match. This CM-ended unit mounts through its round back cover or with an added FA flange, LB foot or SDB pivot bracket. It does not lock position when air drops - the piston drifts freely - so a rod lock or check valve is needed wherever a load must be held.
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 MAC20X65SCM FAQ
At 0.5 MPa: 157 N push, 131.9 N pull. At 0.7 MPa: 219.8 N push, 184.7 N pull. The theoretical maximum at 1.0 MPa is 32 kgf, while realistic continuous work sits near 94 N. Ports are 1/8" PT on the 20 mm bore, the rod measures 8 mm with an M8x1.25 thread, and 65 mm sits inside the 500 mm standard stroke range.
Back both cushion needle screws fully open before first air, then close them gradually until end-of-stroke impact disappears. The cushion is variable, not fixed, so tune it to the load and speed anywhere in the 30-800 mm/s band. Supply air should be filtered to 40 um at 0.15-1.0 MPa (22-145 psi).
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