
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ40X175-10 is a genuine double acting, adjustable stroke + cushion JIS-standard round-body mini air cylinder with a Ø40mm bore and 175mm stroke, 1/4" air ports and a SUS304 stainless-steel barrel for mildly corrosive environments. For the same bore and stroke it is shorter than an ISO 6432 cylinder, saving mounting space.
Dial in exact end positions on-site with the AirTAC MFCJ40X175-10, a JIS-standard round-body mini cylinder built from a SUS304 stainless barrel and riveted aluminium covers. This double-acting actuator features a 10 mm external adjuster that shortens the nominal 175 mm extend stroke down to 165 mm, while the full retract stroke remains unchanged. It uses a 1/4" air port and a 16 mm rod with an M14x1.5 male thread.
Delivering 628.3 N of push force at 0.5 MPa, it handles robust loads with a safe working capacity around 377 N, lifting about 32 kg vertically with a 2:1 margin. A variable needle air cushion at both ends soaks up high-speed shock for smooth deceleration. Furthermore, its riveted construction yields a shorter mounting envelope than an ISO 6432 cylinder for the same bore and stroke, and the stainless body resists mild washdown corrosion. Note this SKU lacks a magnet, so it cannot accept CMSG, DMSG, or EMSG sensors without switching to the -S variant.
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ40X175-10 |
|---|---|
| Series | MFCJ JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 175 mm |
| Acting type | Double acting, adjustable stroke + cushion |
| Port size | 1/4" |
| 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 MF/MFC (JIS-standard) datasheet. Barrel: SUS304 stainless steel; covers: aluminum alloy (round-body, riveted rolling-packed construction). Thread options: PT (blank) / G / NPT.
| 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.
| MFCJ | JIS-standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×175 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSG / DMSG / EMSG sensors. |
MF-family variants: MF / MFC (double acting ±cushion), MSF / MTF (single acting push / pull), MFD / MFCD (double rod ±cushion), MFJ / MFCJ (adjustable stroke ±cushion). Back covers CA / U / CM. Mounting LB / FA / SDB / TC.
Tunes the 165-175 mm extend reach to strike packages precisely while the variable air cushion absorbs the impact of rapid 628.3 N cycling.
Dials in the exact 10 mm adjustment window during commissioning to find the perfect insertion depth without shocking the assembly.
Handles robust 40 mm bore loads, using the needle cushion to bring the heavy stop gate to a quiet halt at the end of its 175 mm stroke.
When sizing between the two available bores, compare your real force needs: this MFCJ40 provides 628.3 N push at 0.5 MPa, whereas the smaller MFCJ32 delivers 402.2 N push. Choose the 40 mm bore if moving heavier platens or overcoming high friction at speed. The 10 mm adjustable window is ideal for trial fits and high-speed changeovers where you must tune both the exact extend endpoint and the end-of-stroke shock. Mounting options include LB foot, FA flange, and TC trunnion (no SDB or back-cover mount). Because the air cushion only decelerates the piston near stroke end and the adjuster solely sets that end position, this cylinder will not hold a load on air loss—the piston drifts. For suspended or vertical loads, specify an external rod lock or pilot-operated check valve.
Quick checklist
This 40 mm bore cylinder uses a 1/4" port and generates 628.3 N push / 527.8 N pull at 0.5 MPa, and 879.6 N push / 738.9 N pull at 0.7 MPa. The theoretical maximum force is 128.1 kgf at 1.0 MPa.
An external adjuster shortens the extend stroke by up to 10 mm on-site (usable range 165-175 mm), while a variable air cushion decelerates the piston at both ends. This specific SKU has no magnet (-S omitted), so it cannot accept CMSG, DMSG, or EMSG sensors.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.