Airtac MAC Stainless Steel Mini Air Cylinder MAC40X350SCMLB
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC40X350SCMLB 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 MAC40X350SCMLB
Foot bolts, long stroke, real force: the LB feet fix this 350 mm MAC straight to a frame, where it turns 0.5 MPa supply into 628.3 N of push and 527.8 N of pull - roughly the force needed to shift a loaded tote on rollers. Double-acting ports mean air covers both directions, while adjustable air cushions at each end trim stop hardness anywhere in the 30-800 mm/s band. The stainless round barrel is roll-packed with aluminium covers into a riveted body that seals reliably at 0.15-1.0 MPa (22-145 psi).
Under all that travel sits a 16 mm hard-chrome plated rod - chrome over carbon steel keeps wear and rust down in outdoor or food-adjacent frames. The built-in magnet is standard kit, ready for CMSG or DMSG switches. In practice, budget around 377 N for actual work at 0.5 MPa, or about 32 kg of vertical lifting with a safety margin.
Airtac MAC Stainless Steel Mini Air Cylinder MAC40X350SCMLB Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC40X350SCMLB |
|---|---|
| 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 MAC40X350SCMLB
| 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 MAC40X350SCMLB Is Used
Pallet gate on a cold-store line
Stainless barrel and chrome rod handle chilled, wet air while 628 N swings a heavy safety gate across 350 mm.
Diverter arm on a grain conveyor
Foot-mounted away from the dust, the rod kicks product lanes over while the magnet feeds a DMSG signal to the PLC.
Scrap chute flap on a press shop
Opens and closes the falling-scrap door, with the air cushion absorbing the flap slam at both stroke ends.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC40X350SCMLB the Right Cylinder?
Forces scale with bore: a 32 mm unit manages 402 N at 0.5 MPa, this 40 mm does 628 N, and a 50 mm bore jumps to 981 N - pick by load plus cushioning margin. LB feet carry the mounting, while the CM round end and I or Y knuckles can still take the rod side. Note the holding limit: when air drops, the piston moves wherever the load pushes it, so hang a pilot check valve or rod lock on anything that must stay put. Support any side load separately; a 350 mm stroke amplifies small misalignments into rod wear.
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 MAC40X350SCMLB FAQ
Use 628.3 N push and 527.8 N pull at 0.5 MPa, or 879.6 N push and 738.9 N pull at 0.7 MPa, with a 128.1 kgf theoretical maximum at 1.0 MPa. Ports are 1/8", rod 16 mm, rod thread M12x1.25, stroke 350 mm.
Back both needle screws fully out before the first run, then close them gradually until the 350 mm stroke lands without knock. The variable cushion is built into both covers, and the speed range is 30-800 mm/s at 0.15-1.0 MPa (22-145 psi).
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