Airtac MG Stainless Steel Mini Air Cylinder MG40X175S
The AirTAC Airtac MG Stainless Steel Mini Air Cylinder MG40X175S is a genuine double acting 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
- Rod threadM14×1.5
- CushionFixed anti-impact bumper pads
About the Airtac MG Stainless Steel Mini Air Cylinder MG40X175S
With a 40 mm bore pushing 628.3 N at 0.5 MPa (879.6 N at 0.7 MPa), this double acting MG40X175S is the strongest standard MG in the range, delivered with a 175 mm stroke and a built-in magnet for CMSG, DMSG or EMSG switches. The JIS round-body design rolls a SUS304 stainless barrel onto the covers, so the riveted shell shrugs off washdown and damp shop air far better than a painted mini, and the hard-chrome plated 16 mm rod keeps sealing surfaces smooth over millions of cycles. Ports are 1/8" on every MG bore, and the male rod thread is M14x1.5.
For sizing the work, treat roughly 377 N (about 60% of the 0.5 MPa push) as the practical continuous force; in vertical terms the bore develops about 64 kgf of thrust at 0.5 MPa, so with a 2:1 margin it lifts about 32 kg vertically. The fixed anti-impact bumper pad at each stroke end softens direction change but is not an adjustable cushion and never holds a load - if air is lost the rod drifts freely, so add an external rod lock or pilot check valve where position must be kept.
Airtac MG Stainless Steel Mini Air Cylinder MG40X175S Technical Specifications
| Model | Airtac MG Stainless Steel Mini Air Cylinder MG40X175S |
|---|---|
| Series | MG JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 175 mm |
| Acting type | Double acting |
| 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 | Fixed anti-impact bumper pads |
| 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 MG Stainless Steel Mini Air Cylinder MG40X175S
| MG | JIS round-body mini cylinder (double-acting). |
|---|---|
| 40 | Bore size in mm. |
| ×175 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSG / DMSG / EMSG sensors. |
| FA / LB / CB / SDB | Mounting: FA flange, LB foot, CB clevis, SDB pivot bracket (with CB). |
MG-family variants: MG / MGC (double acting ±cushion), MSG / MTG (single acting push / pull), MGD / MGCD (double rod ±cushion). Accessories: LB foot, FA flange, CB clevis, SDB pivot block, plus I and Y knuckles. Thread PT (blank) / G / NPT.
Where the Airtac MG Stainless Steel Mini Air Cylinder MG40X175S Is Used
Pallet-stamp marking head
A 628 N push at 0.5 MPa drives a dot-peen or ink stamp into wooden pallets on a packaging line, with the 175 mm stroke clearing the pallet edge between cycles.
Bottle-lane gate on a filler
The magnet and a CMSG switch confirm gate position to the PLC as the cylinder diverts glass bottles between lanes in a bottling hall, where the stainless barrel tolerates frequent hose-down.
Die-cart lift assist
Lifting about 32 kg vertically with a 2:1 margin, the bore raises a small die or fixture onto a maintenance cart, the bumper pad damping the settle at the bottom of travel.
Is the Airtac MG Stainless Steel Mini Air Cylinder MG40X175S the Right Cylinder?
Step up from a 32 mm MG (402.2 N push at 0.5 MPa) when your tooling needs more than about 400 N; if even 628 N is marginal or the cycle is fast and load inertia high, move to the cushioned MGC series, which extends the range to Dia 50 and Dia 63 bores with adjustable air cushioning. The 175 mm stroke is well inside the 500 mm standard range for this bore, but keep side loads off the 16 mm rod - guide the load externally on rails or a slide rather than bending the rod. This SKU already carries the -S magnet, so order CMSG, DMSG or EMSG reed switches separately; mounting choices are LB foot, FA flange, CB clevis or SDB pivot, with I and Y rod knuckles for the tooling end.
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 / CB / SDB) & 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/impact settings and release gradually.
- check Installation by qualified personnel per AirTAC docs.
Airtac MG Stainless Steel Mini Air Cylinder MG40X175S FAQ
At 0.5 MPa it pushes 628.3 N and pulls 527.8 N; at 0.7 MPa push rises to 879.6 N and pull to 738.9 N; theoretical maximum is 128.1 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-800 mm/s, and the port is 1/8" with an M14x1.5 male rod thread on the 16 mm rod.
The S in MG40X175S means a magnet is built into the piston, so CMSG, DMSG or EMSG reed switches clamp directly onto the SUS304 barrel to signal end positions. A non-S MG has no magnet and cannot trigger these switches, and the bumper pads themselves are only impact pads - they do not detect or hold position.
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