Airtac MAC Stainless Steel Mini Air Cylinder MAC63X20SCM
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC63X20SCM is a genuine double acting + cushion standard round-body mini air cylinder with a Ø63mm bore and 20mm stroke, 1/4" 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.
- BoreØ63 mm
- Stroke20 mm
- Port size1/4"
- Acting typeDouble acting + cushion
- Rod threadM14×1.5
- CushionVariable air cushion, both ends
About the Airtac MAC Stainless Steel Mini Air Cylinder MAC63X20SCM
Round, riveted and stainless: the MAC63X20SCM puts the biggest bore in AirTAC's mini family, 63 mm, onto a 20 mm stroke, so all 1558 N of push force at 0.5 MPa comes from a compact round body. It is double acting with a variable air cushion at both ends, extending and retracting on air alone behind a 16 mm hard-chrome plated rod. A practical planning figure: budget around 935 N for real work at 0.5 MPa and keep the rest in reserve, which still covers roughly 79 kg of straight vertical lift on a 2:1 margin.
The CM round-end back cover presents a clean fixed mounting face with no adapter brackets, while the riveted stainless barrel and aluminium covers shrug off washdown and damp workshops where painted minis rust. Every MAC ships with the magnet built in, so CMSG, DMSG or EMSG switches snap on for end-of-stroke signals. Ports are 1/4", the rod thread is M14x1.5, and if you back the cushion needle screws off on first run and close them gradually, the 30-800 mm/s speed band stays smooth even when a 2181 N push at 0.7 MPa lands on the covers.
Airtac MAC Stainless Steel Mini Air Cylinder MAC63X20SCM Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC63X20SCM |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø63 mm |
| Stroke | 20 mm |
| Acting type | Double acting + cushion |
| Port size | 1/4" |
| Rod thread | M14×1.5 |
| 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 (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1458 N |
| 0.7 MPa | 2182 N | 2041 N |
| Max (@1.0 MPa) | 318 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 MAC63X20SCM
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 63 | Bore size in mm. |
| ×20 | 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 MAC63X20SCM Is Used
Bearing press fitting
Seating sealed bearings into gearbox housings on short, hard strokes - 1558 N at 0.5 MPa does the pushing while the cushion tames the landing.
CNC fixture hold-downs
A 20 mm clamp stroke pins machined blanks against hard stops; the round-end CM cover mounts flush inside the fixture plate.
Tray lid sealing press
Pressing lids onto filled trays on a packaging line, where the stainless barrel and chrome rod survive daily hose-down.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC63X20SCM the Right Cylinder?
For 20 mm moves that need real muscle, step down to a MAC50X20 (981 N push at 0.5 MPa) when the load is lighter, or stay at 63 mm - there is no larger bore in the series, and the theoretical ceiling here is 317.7 kgf at 1.0 MPa. Operating pressure spans 0.15-1.0 MPa (22-145 psi). Note that a plain MAC holds no position when air is dropped: the piston drifts, so fit a rod lock or pilot check valve for held loads. The CM cover bolts straight onto a fixed plate; if the job needs a pivoting link instead, the CA back cover in the code does that job.
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 MAC63X20SCM FAQ
At 0.5 MPa the double-acting piston delivers 1558 N pushing and 1457 N pulling; at 0.7 MPa that rises to 2181 N push and 2040 N pull. The theoretical maximum is 317.7 kgf at 1.0 MPa. For everyday sizing, treat roughly 935 N as the dependable push force at 0.5 MPa.
The CM back cover gives a flat, concentric face you can bolt straight to a plate or fixture without mounting brackets. Combined with the riveted stainless barrel, hard-chrome rod and built-in magnet (ready for CMSG / DMSG / EMSG switches), you get a sealed, corrosion-resistant 20 mm stroke you can monitor at both ends.
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