Airtac MFJ Adjustable Mini Cylinder MFJ40X160-100S
The AirTAC Airtac MFJ Adjustable Mini Cylinder MFJ40X160-100S is a genuine double acting, adjustable stroke JIS-standard round-body mini air cylinder with a Ø40mm bore and 160mm 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.
- BoreØ40 mm
- Stroke160 mm
- Port size1/4"
- Acting typeDouble acting, adjustable stroke
- Rod threadM14×1.5
- CushionFixed TPU bumper pads
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MFJ Adjustable Mini Cylinder MFJ40X160-100S
Trim the extend end by up to 100 mm directly at the fixture with the MFJ40X160-100S, setting usable travel between 60 and 160 mm without buying a new unit. This JIS-standard round-body mini cylinder pairs a SUS304 stainless barrel with riveted aluminium covers, yielding a shorter overall length than an ISO 6432 build for the same 40 mm bore and 160 mm stroke.
Driven by a 16 mm rod and a 1/4" port, the double-acting action delivers 628.3 N of push force at 0.5 MPa. The integrated -S magnet supports CMSG, DMSG and EMSG switches for position sensing. With a safe working load near 377 N, it lifts about 32 kg vertically with a 2:1 margin. Fixed TPU bumpers absorb end impacts across the 30-800 mm/s speed range.
Airtac MFJ Adjustable Mini Cylinder MFJ40X160-100S Technical Specifications
| Model | Airtac MFJ Adjustable Mini Cylinder MFJ40X160-100S |
|---|---|
| Series | MFJ JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 160 mm |
| Acting type | Double acting, adjustable stroke |
| 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 | Fixed TPU bumper pads |
| 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.
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 MFJ Adjustable Mini Cylinder MFJ40X160-100S
| MFJ | JIS-standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 40 | Bore size in mm. |
| ×160 | 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.
Where the Airtac MFJ Adjustable Mini Cylinder MFJ40X160-100S Is Used
Changeover Stations
Dial in the extend position across different product families using the 100 mm window, avoiding the need to swap cylinders when retooling the line.
Prototype Fit-Ups
Safely test end-of-stroke locations on new assemblies, relying on the 628.3 N push force to seat components while you finalize the exact 60-160 mm travel.
Variable Position Stops
Replace hard external stops with the built-in adjuster to set precise extend endpoints on the fly, perfect for flexible machining fixtures.
Is the Airtac MFJ Adjustable Mini Cylinder MFJ40X160-100S the Right Cylinder?
When sizing these adjustable cylinders, compare the real thrust: this 40 mm bore pushes 628.3 N at 0.5 MPa, whereas the 32 mm bore delivers 402.2 N. Choose the 40 mm version when moving heavier jigs or defeating higher friction during line changeovers. The 100 mm adjustment window is ideal for trial fits where the exact extend position is unknown until commissioning.
Mounting options include LB foot, FA flange and TC trunnion (no SDB or back-cover). Remember that the external adjuster only shortens the extend stroke; it does not lock the piston. If air pressure drops, the load drifts, so fit an external rod lock or pilot check valve for holding. The -S magnet enables CMSG/DMSG/EMSG sensors; without it, a SKU cannot take a switch.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Back cover (CA/U/CM) & mount (LB/FA/SDB/TC)
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 Use correct back cover (CA/U/CM) & mount (LB/FA/SDB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac MFJ Adjustable Mini Cylinder MFJ40X160-100S FAQ
This 40 mm bore cylinder features a 1/4" port and a 16 mm rod. It generates 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. The theoretical maximum force is 128.1 kgf at 1.0 MPa.
The external adjuster shortens the extend stroke by up to 100 mm on-site, giving a usable extend range of 60-160 mm; retract remains full. End-of-travel deceleration is handled by fixed TPU bumper pads, not an adjustable air cushion. The -S magnet allows CMSG, DMSG and EMSG sensors to detect position.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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