Airtac MAC Stainless Steel Mini Air Cylinder MAC40X350SU
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC40X350SU is a genuine double acting + cushion standard round-body mini air cylinder with a Ø40mm bore and 350mm 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.
- BoreØ40 mm
- Stroke350 mm
- Port size1/8"
- Acting typeDouble acting + cushion
- Rod threadM12×1.25
- CushionVariable air cushion, both ends
About the Airtac MAC Stainless Steel Mini Air Cylinder MAC40X350SU
The U back cover presents a flat, threaded face for direct fixing, and the 40 mm bore behind it delivers 628.3 N of push and 527.8 N of pull at 0.5 MPa. This is a double-acting cylinder - air extends and retracts the 16 mm rod - with needle-tuned air cushions at both ends of the 350 mm stroke. Roll-packed stainless barrel and aluminium covers keep the body tight from 0.15-1.0 MPa (22-145 psi), proof tested to 1.5 MPa (215 psi).
Mild corrosion is where this mini earns its keep: the stainless tube and 20 um hard-chrome rod outlast painted minis in humid, washed or outdoor positions. A standard built-in magnet suits CMSG, DMSG and EMSG switches. Size the actual work at roughly 377 N of push at 0.5 MPa, or count on about 32 kg of vertical lift with a two-to-one margin.
Airtac MAC Stainless Steel Mini Air Cylinder MAC40X350SU Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC40X350SU |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 350 mm |
| Acting type | Double acting + cushion |
| Port size | 1/8" |
| Rod thread | M12×1.25 |
| 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | 739 N |
| Max (@1.0 MPa) | 128 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 MAC40X350SU
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×350 | 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 MAC40X350SU Is Used
Screen gate ram at a quarry sorter
Dust and rain meet a stainless barrel, while 628 N of push shoves the reject gate across on demand.
Stop gate at a roller conveyor exit
Halts rolling totes one at a time; the cushion absorbs impact and the magnet reports gate position to the controller.
Bushing press assist on a repair bench
Adds 628 N of powered stroke to a manual arbor press, cushioned gently before bottom-out.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC40X350SU the Right Cylinder?
Match force first: 402 N from a 32 mm bore if the load is light, 981 N from a 50 mm bore if it is heavy, 628 N from this one in between. The U flat end fixes straight to a plate; FA flange, LB foot or SDB pivot brackets are available if the frame calls for them. Air loss means motion - the piston will creep under load because nothing in a standard MAC holds it - so fit a rod lock or pilot check valve for parked positions. Guide side loads separately over the long 350 mm travel to protect the chrome 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 MAC40X350SU FAQ
At 0.5 MPa: 628.3 N push, 527.8 N pull. At 0.7 MPa: 879.6 N push, 738.9 N pull. Theoretical maximum at 1.0 MPa is 128.1 kgf. Port 1/8", rod 16 mm, rod thread M12x1.25, stroke 350 mm, speed 30-800 mm/s.
The barrel is stainless steel with aluminium covers rolled on, so humidity, splash and outdoor weather cause far less trouble than on painted or plain aluminium minis. The 16 mm rod is hard-chrome plated carbon steel for long wear life.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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