Airtac MGC Stainless Steel Mini Cylinder MGC40X175S
The AirTAC Airtac MGC Stainless Steel Mini Cylinder MGC40X175S is a genuine double acting + cushion JIS-standard round-body mini air cylinder with a Ø40mm bore and 175mm stroke, 1/8" air ports and a SUS304 stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ40 mm
- Stroke175 mm
- Port size1/8"
- Acting typeDouble acting + cushion
- Rod threadM14×1.5
- CushionVariable air cushion, both ends
About the Airtac MGC Stainless Steel Mini Cylinder MGC40X175S
The AirTAC MGC40X175S is a double acting JIS-standard round-body mini cylinder with a 40 mm bore and 175 mm stroke, fitted with a variable air cushion at both ends. Unlike the bumper-type MG, this cushion is adjustable: turn the needle valve at each cover to dial in smooth piston deceleration near end of travel, so the cylinder tolerates higher piston speeds and heavier moving loads without hammering the covers. At 0.5 MPa it delivers a push force of 628.3 N and a pull force of 527.8 N; a practical rule of thumb for safe vertical lifting is roughly 0.6 of the push force, or about 38 kg.
Construction follows the MG family recipe: a SUS304 stainless barrel with covers and stainless block riveted and rolled onto it, plus a hard-chrome plated (20 um) 16 mm carbon-steel rod with an M14x1.5 male thread. The two-way piston seal also stores lubricant, and ports are 1/8". Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed range 30-800 mm/s, and temperature -20 to +70 C with air filtered to 40 um. The S code means a magnet is fitted, so CMSG, DMSG or EMSG switches can be mounted for position feedback. Mounting options are FA flange and LB foot, with I and Y rod knuckles available.
Airtac MGC Stainless Steel Mini Cylinder MGC40X175S Technical Specifications
| Model | Airtac MGC Stainless Steel Mini Cylinder MGC40X175S |
|---|---|
| Series | MGC JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 175 mm |
| Acting type | Double acting + cushion |
| Port size | 1/8" |
| 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 MG-series (JIS standard) datasheet. Barrel: SUS304 stainless steel (round-body, riveted construction); piston rod: carbon steel with 20µm hard-chrome plating. Thread options: PT (blank) / G / NPT.
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 MGC Stainless Steel Mini Cylinder MGC40X175S
| MGC | JIS round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×175 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSG / DMSG / EMSG sensors. |
| FA / LB | Mounting: FA flange, LB foot. |
MG-family variants: MG / MGC (double acting ±cushion), MSG / MTG (single acting push / pull), MGD / MGCD (double rod ±cushion). Accessories: LB foot, FA flange, plus I and Y knuckles. Thread PT (blank) / G / NPT.
Where the Airtac MGC Stainless Steel Mini Cylinder MGC40X175S Is Used
Conveyor push-off stations
The 628.3 N push at 0.5 MPa ejects cartons or trays from a conveyor line, while the variable air cushion absorbs the moving load at end of stroke so the 175 mm travel finishes smoothly at line speed.
Small assembly press operations
With 879.6 N available at 0.7 MPa (89.7 kgf theoretical at 1.0 MPa), this cylinder handles light pressing, staking and inserting tasks where adjustable deceleration protects the fixture.
Packaging and indexing slides
Running at up to 800 mm/s, the cushioned 40 mm bore drives indexing stops and gate slides in packaging machinery, and the fitted magnet with CMSG/DMSG/EMSG switches confirms end positions.
Is the Airtac MGC Stainless Steel Mini Cylinder MGC40X175S the Right Cylinder?
At 40 mm bore, the MGC40X175S sits in the middle of the MGC range: it pushes 628.3 N at 0.5 MPa, well above the 245.3 N of a 25 mm bore and below the 981.3 N of a 50 mm bore, so size up to 50 or 63 mm if your load needs more margin. For bores 20 to 40 mm, the plain bumper MG is the no-cushion alternative if end-of-stroke impact is not a concern; choose the MGC when you run higher speeds or carry moving loads that need adjustable deceleration. The 175 mm stroke is comfortably within the 500 mm maximum standard stroke for this bore, so no made-to-order surcharge applies. Specify FA flange or LB foot mounting, add I or Y rod knuckles if the tooling needs a pivot, and remember the S magnet is already fitted on this model for CMSG/DMSG/EMSG sensing. At 175 mm of stroke, keep side loads on the 16 mm rod minimal or guide the load externally to protect the bearings.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting (LB / FA) & knuckle
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 and release gradually.
- check Installation by qualified personnel per AirTAC docs.
Airtac MGC Stainless Steel Mini Cylinder MGC40X175S FAQ
At 0.5 MPa it pushes 628.3 N and pulls 527.8 N; at 0.7 MPa it pushes 879.6 N and pulls 738.9 N. The theoretical maximum is 128.1 kgf at 1.0 MPa. For vertical lifting, apply a safety factor of about 0.6 of the push force, which gives roughly 38 kg.
The cushion is an adjustable air chamber at each end: turn the needle to throttle exhaust and decelerate the piston smoothly before it reaches the cover, which is ideal for higher speeds and heavier moving loads. It only decelerates end of stroke - it is not a lock or brake, and the cylinder will not hold position on air loss. For a held load, add an external rod lock or pilot-operated check valve.
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