Airtac MBLCJ Adjustable Mini Cylinder MBLCJ32X125-40S
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ32X125-40S is a genuine double-acting aluminum-barrel mini cylinder with a Ø32mm bore, a 125mm nominal stroke and a rear adjustable-stroke stopper — trim up to 40mm for a usable window of 85–125mm. Adjustable air cushion (both ends).
- BoreØ32 mm
- Stroke125 mm
- Adjustable85–125 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable air cushion (both ends)
- 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 MBLCJ Adjustable Mini Cylinder MBLCJ32X125-40S
The AirTAC MBLCJ32X125-40S is a compact double-acting aluminum mini cylinder featuring a rear stroke adjuster and an adjustable air cushion at both ends. You can trim the rear travel up to 40 mm, creating a usable end-position window of 85 to 125 mm. Driven by a Ø12 mm hard-chrome rod, it delivers 402 N of push force and 346 N of pull force at 0.5 MPa. This 125 mm stroke suits mid-length indexing tasks on compact assembly machinery.
The integrated -S magnet allows solid-state DMSG or EMSG electronic sensors (and CMSG reed switches) to track rod position for sequence control. Unlike the base MBLJ which relies on a fixed rubber bumper, the screw-tunable air cushions on this unit let you dial in end-of-stroke deceleration for heavier 32 mm bore payloads, preventing end-cover damage. Note that the rear adjuster is a mechanical travel stop, not a load-holding lock; the cylinder will drift without live air pressure.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ32X125-40S Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ32X125-40S |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø32 mm |
| Nominal stroke | 125 mm |
| Adjustable window | 85–125 mm (trim 40 mm) |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| 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 | Adjustable air cushion (both ends) |
| Max standard stroke | Up to 500 mm |
The rear stopper sets the end position — it is a travel stop, not a lock. Overall length = A + 2 × stroke + adjustable stroke. MBLJ/MBLCJ mounting is Basic / FA / LB only (no SDB, no back-cover code). Thread options: PT / G / NPT.
Theoretical Output Force (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a margin.
Model Code: Airtac MBLCJ Adjustable Mini Cylinder MBLCJ32X125-40S
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 32 | Bore size in mm. |
| ×125 | Nominal stroke length in mm. |
| -40 | Adjustable-stroke amount (mm you can trim at the rear). |
| S | Optional built-in magnet for a CMSG/DMSG/EMSG sensor switch. |
Related: MBLJ (adjustable stroke, fixed bumper), MBL (fixed stroke), MBLD (double rod).
Where the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ32X125-40S Is Used
PCB Conveyor Gating
Stops populated printed circuit boards on a SMT line using the 85-125 mm adjustable window, while the tunable cushion decelerates the 402 N push force to prevent marring delicate components.
Bottle Capping Heads
Applies precise downward pressure on a capping spindle, where the rear adjuster sets the exact 40 mm trim for cap height and the air cushion softens the tool strike at 0.5 MPa.
Textile Yarn Guides
Actuates yarn tensioning guides on a weaving loom, using the DMSG sensor to confirm rod position and the cushioned ends to absorb the rapid 125 mm stroke reversals without shock.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ32X125-40S the Right Cylinder?
If 402 N of push at 0.5 MPa is too much for your fixture, step down to the 25 mm bore MBLCJ25 variant, which provides 245 N of push force. If your mechanism requires more thrust, the 40 mm bore MBLCJ40 variant steps up to 628 N. This MBLCJ32X125-40S is preferred over the fixed-stroke MBLC32 when you need to fine-tune the exact end position within its 85-125 mm window, and over the bumper-only MBLJ32 when your moving mass demands tunable deceleration rather than a hard rubber stop.
Remember that neither the rear stroke adjuster nor the air cushion acts as a brake or position lock; the rod drifts without air pressure, so use an external locking mechanism for true holding. Mounting is limited to Basic, FA flange, or LB foot brackets, as this series omits SDB pivot and back-cover options. The overall length extends proportionally to A + 2 x stroke + adjust, so verify your envelope. To replace this SKU exactly, match the 32 mm bore, 125 mm stroke, 40 mm adjust code, G1/8 port, PT thread, and -S magnet.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Adjustable window fits your end position
- ✓ Adjuster is a travel stop, not a lock
- ✓ Magnet (S) for sensors?
- ✓ Side load — add a guide on long strokes
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Set the rear stopper for the end position (a travel stop, not a lock).
- check Avoid side load; add an external guide on long strokes.
- check Mounting: Basic / FA flange / LB foot (no SDB, no back-cover code).
- check Installation by qualified personnel per AirTAC docs.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ32X125-40S FAQ
At 0.5 MPa, this 32 mm bore cylinder provides 402 N of push force and 346 N of pull force. At 0.7 MPa, the push force increases to 563 N, with a theoretical maximum of 82 kgf at 1.0 MPa. It uses a G1/8 port and a Ø12 mm rod with an M10x1.25 thread.
The rear adjustable stroke is a mechanical stopper that lets you trim the travel window down to 85-125 mm, setting the exact end position. The adjustable air cushion is a screw-tunable valve that controls deceleration near the stroke ends to protect the end covers. Neither holds the load in place; the cylinder drifts without air pressure.
Authorized Export Seller
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.
Related AirTAC Adjustable-Stroke Cylinders
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