Airtac MGC Stainless Steel Mini Cylinder MGC20X175S
The AirTAC Airtac MGC Stainless Steel Mini Cylinder MGC20X175S is a genuine double acting + cushion JIS-standard round-body mini air cylinder with a Ø20mm bore and 175mm stroke, M5×0.8 air ports and a SUS304 stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ20 mm
- Stroke175 mm
- Port sizeM5×0.8
- Acting typeDouble acting + cushion
- Rod threadM8×1.25
- CushionVariable air cushion, both ends
About the Airtac MGC Stainless Steel Mini Cylinder MGC20X175S
The MGC20X175S is a JIS-standard round-body mini cylinder, double acting, built with a variable air cushion at both stroke ends. Unlike the bumper-style MG, this cushion is adjustable: turn the needle valve to dial in smooth piston deceleration near end of travel, so the cylinder tolerates higher speeds and heavier moving loads without hammering the covers. With a 20 mm bore it delivers 157 N push and 131.9 N pull at 0.5 MPa (72 psi), rising to 219.8 N push at 0.7 MPa (101 psi), with a theoretical maximum of 32 kgf at 1.0 MPa (145 psi). The 175 mm stroke sits well inside the 500 mm standard range for this bore.
Construction follows the JIS mini-cylinder pattern: a SUS304 stainless barrel with covers and stainless block riveted and rolled into place, plus a hard-chrome plated (20 um) carbon-steel rod with an M8x1.25 male thread. The two-way piston seal also stores lubricant for long service life. Air ports are M5x0.8, the operating pressure range is 0.15-1.0 MPa (22-145 psi), and speed spans 30-800 mm/s. Because the S code is fitted, a magnetic piston works with CMSG, DMSG or EMSG switches. As a computed buyer insight, the 157 N push force equals about 16 kgf, so a safe working load at roughly 0.6 of that is around 9.6 kg horizontally, or about 8 kg for vertical lift. Note that the cushion only decelerates the stroke end; it is not a lock, so use an external rod lock or pilot check valve to hold a load on air loss.
Airtac MGC Stainless Steel Mini Cylinder MGC20X175S Technical Specifications
| Model | Airtac MGC Stainless Steel Mini Cylinder MGC20X175S |
|---|---|
| Series | MGC JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 175 mm |
| Acting type | Double acting + cushion |
| Port size | M5×0.8 |
| Rod thread | M8×1.25 |
| 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 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 (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | 185 N |
| Max (@1.0 MPa) | 32 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 MGC20X175S
| MGC | JIS round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | 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 MGC20X175S Is Used
High-cycle small-part ejection
Pushing light components off a conveyor line at 30-800 mm/s, where the adjustable air cushion stops the piston smoothly at both ends and prevents cover hammering over millions of cycles.
Compact clamping fixtures
Clamping or positioning jigs in tight machine envelopes, using the 157 N push at 0.5 MPa (72 psi) with CMSG sensor feedback from the fitted magnet to confirm part presence.
Packaging gate and divert actuation
Swinging or sliding small divert gates and product stops on packaging machinery, where the variable cushion absorbs the moving gate mass and the LB foot or FA flange mounts cleanly to the frame.
Is the Airtac MGC Stainless Steel Mini Cylinder MGC20X175S the Right Cylinder?
Choose the MGC20X175S when your application runs at higher piston speed or carries a moving load that would slam the covers of a bumper cylinder: the variable air cushion at both ends lets you tune the deceleration instead of relying on a fixed pad. At 20 mm bore this is the smallest MGC available, producing 157 N push and 131.9 N pull at 0.5 MPa (72 psi) and 219.8 N push at 0.7 MPa (101 psi). If you do not need cushioning and want the same JIS footprint in 20-40, the plain MG is the no-cushion alternative. The 175 mm stroke is a standard length (up to 500 mm is standard for this bore). Mount with the FA flange or LB foot, and add I or Y rod knuckles where a pivoting joint helps; the MGC does not take SDB/CB pivots. The fitted magnet supports CMSG/DMSG/EMSG position sensing. For strokes beyond 500 mm, made-to-order lengths up to 800 mm are available. On long strokes, guide the rod externally if any side load is present, since the 8 mm rod is intended for axial loads only.
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 MGC20X175S FAQ
At 0.5 MPa (72 psi) it gives 157 N push and 131.9 N pull; at 0.7 MPa (101 psi) it gives 219.8 N push and 184.7 N pull. The theoretical maximum is 32 kgf at 1.0 MPa (145 psi). For sizing, treat about 0.6 of the 0.5 MPa push force (roughly 9.6 kg) as a safe working load.
The cushion is adjustable at both stroke ends: a needle lets you set how strongly the piston decelerates before reaching the cover, which suits higher speeds and heavier moving loads than the fixed-bumper MG. The body is a JIS round-body design with a riveted SUS304 stainless barrel, hard-chrome plated rod, M5x0.8 ports, and FA flange or LB foot mounting.
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