Airtac MAC Stainless Steel Mini Air Cylinder MAC50X40SCM
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC50X40SCM is a genuine double acting + cushion standard round-body mini air cylinder with a Ø50mm bore and 40mm 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.
- BoreØ50 mm
- Stroke40 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 MAC50X40SCM
Round covers at both ends give the MAC50X40SCM the neatest compact outline in the bore-50 MA family: a 40 mm double-acting stroke pushing 981 N and pulling 881 N at 0.5 MPa (72 psi), all from a body no wider than its 50 mm tube. The stainless barrel is rolled and packed onto the aluminium covers, so vibration cannot shake the seams apart in demanding cells.
Inside, the two-way piston seal stores its own grease for long service, and a variable air cushion at each end lets you tune out impact as loads grow toward the 50 kg-class mark - that figure being about half the theoretical 100 kg vertical lift at 0.5 MPa (72 psi), kept with a 2:1 margin. The magnet is standard, so CMSG, DMSG or EMSG switches read position straight off the barrel.
Airtac MAC Stainless Steel Mini Air Cylinder MAC50X40SCM Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC50X40SCM |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø50 mm |
| Stroke | 40 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 881 N |
| 0.7 MPa | 1374 N | 1234 N |
| Max (@1.0 MPa) | 200 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 MAC50X40SCM
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 50 | Bore size in mm. |
| ×40 | 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 MAC50X40SCM Is Used
Indexing pin on a rotary dial table
Pulling an indexing pin from a dial-table fixture between cycles; 40 mm strokes fast at 800 mm/s and 981 N at 0.5 MPa (72 psi) reseats the pin solidly.
Crate stopper on a filling line
Raising a crate stopper at a washdown filling conveyor, where the riveted stainless round body tolerates hourly hose-down between shifts.
Slide valve on a slurry tank
Stroking a slurry-tank drain slide valve, with the CM round rear cover pinned to the linkage and an EMSG switch proving full open before pump restart.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC50X40SCM the Right Cylinder?
At 981 N push per 0.5 MPa (72 psi) this bore-50 unit delivers about two and a half times the force of a bore-32 MAC (402 N), and the bore-63 MAC (1558 N) is the next step if you need more. The CM round rear cover takes a pivot pin directly; pair it with an I or Y knuckle on the rod side, or order FA flange, LB foot or SDB bracket hardware for fixed frames. A plain MAC does not hold position when air drops - the piston drifts - so add a rod lock or pilot check valve where the load must stay put.
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 MAC50X40SCM FAQ
Push 981 N and pull 881 N at 0.5 MPa (72 psi); push 1374 N and pull 1233 N at 0.7 MPa; theoretical peak 200.1 kgf. Stroke 40 mm, bore 50 mm, rod 16 mm, ports 1/4 inch PT, pressure 0.15-1.0 MPa (22-145 psi), speed 30-800 mm/s, temperature -20 to +70 C.
It presents a clean cylindrical pivot point at the rear of the barrel, so the cylinder can swing on a pin in tight machines without a separate trunnion bracket. Combine it with the variable air cushion needles to damp end-of-stroke shock on the 40 mm stroke at high speed.
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