Airtac MAC Stainless Steel Mini Air Cylinder MAC20X375SCM
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC20X375SCM is a genuine double acting + cushion standard round-body mini air cylinder with a Ø20mm bore and 375mm 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
- Stroke375 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 MAC20X375SCM
Built as a rolled, riveted round body rather than a bolted stack, the MAC20X375SCM keeps a stainless barrel wrapped around a hard-chrome plated rod, so washdown spray and humid air do not eat the tube the way they chew painted mini cylinders. Air drives the piston both ways, and a variable cushion at each end absorbs the stop, useful at this 375 mm stroke.
At 0.5 MPa the bore 20 piston pushes 157 N (about 16 kgf) and pulls 131.9 N. Plan real work around 94 N, roughly six tenths of the push rating, and the rod will lift about 8 kg vertically with a 2:1 margin. Fluid is clean dry air filtered to 40 um; pressure runs 0.15-1.0 MPa (22-145 psi).
Airtac MAC Stainless Steel Mini Air Cylinder MAC20X375SCM Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC20X375SCM |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 375 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 MAC20X375SCM
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×375 | 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 MAC20X375SCM Is Used
Carton diverter pusher
Swings a light deflector across a packaging conveyor to steer small cartons; 94 N of usable push at 0.5 MPa handles the gate, and the 375 mm stroke clears the full lane width.
Sampling probe slide
Advances a liquid sampling probe into a process tank; the stainless barrel and chrome rod tolerate humid, rinsed-down surroundings, and cushioning eases probe entry.
Case flap tucker
Folds top flaps on a semi-auto case sealer; the CM pivot cover mounts straight into the linkage, and the magnet feeds a CMSG switch for flap-down confirmation.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC20X375SCM the Right Cylinder?
Step down to bore 16 (100.5 N push at 0.5 MPa) if 94 N of usable force covers the job, or step up to bore 25 (245.3 N) when loads grow; both share the same mini format. Note the plain cylinder drifts when air is cut, so hang a pilot check valve or rod lock on any load that must stay put. The CM round-end cover takes a pivot pin directly, FA flange or LB foot mounts bolt on, and the built-in magnet suits CMSG switching. At 375 mm of stroke, guide the load externally and keep side load off the rod.
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 MAC20X375SCM FAQ
At 0.5 MPa the bore 20 piston pushes 157.0 N and pulls 131.9 N; raise supply to 0.7 MPa and push reaches 219.8 N with pull at 184.7 N. The theoretical ceiling is about 32 kgf at 1.0 MPa. Ports are 1/8 inch, the rod thread is M8x1.25, and the 375 mm stroke sits inside the 500 mm standard limit for this bore.
The barrel is high-precision stainless steel rolled over aluminium covers with a 20 um hard-chrome plated carbon rod, a construction that resists mild corrosion and routine hose-down far better than painted mini cylinders. Cushion needle screws at both ends should be backed off on first run, then opened gradually.
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