Quick couplers · Pin-grabber
QC-PG - pin-grabber quick-coupler for factory brackets
- For machines of 0.9–40 t
- We usually reply within 1 working day
- We check the fit before we send the quote
- 12 months warranty on manufacturing defects
- Every offer names the dispatch week
- If a bracket we made is wrong and does not fit your machine, we replace it.
Call +48 503 808 636Message us on WhatsAppPhotos and voice notes are welcome.
Standard
Pin-Grab - pin-grabber type quick-couplers
The whole range: Excavator quick couplers
- 0.9–40 tons
Pin-grabber quick-coupler using factory brackets: it picks up the excavator manufacturer’s own bracket, and the variable pin-centre models let one coupler take OEM attachments with different pin spacing. Fully automatic hydraulic (QC-PG), mechanical by wrench (QC-ML-M, wrench included) and hydraulic tilt/swivel (QC-U-PG) versions are available across ten sizes, from 0.9 t carriers to 40 t machines.
About this family
Safety: front mechanical lock so the attachment does not fall if the rear has not engaged, rear mechanical lock, a third hydraulic lock through a pilot operated check valve, and a visual indicator of coupler state. Weight and dimensions depend on the excavator model. The figures in the table are from the catalogue, which gives them as approximate.
Features
- Fits factory OEM brackets
- Automatic, manual, swiveling options available
- Safety features (pilot operated check valve)
- Lifting hook option
- Variable pin-centre models
Automatic: hydraulic pin-grab quick-coupler with three locks
- Front Mechanical Safety Lock: the bucket does not fall if the rear is not engaged
- Rear Mechanical Safety Lock: a stiff spring keeps it engaged
- Third Hydraulic Lock: pilot operated check valve
- Visual Indicator of coupler state.
Manual: mechanical pin-grab quick-coupler operated by wrench
- Mechanical action operated by wrench (included).
- Less expensive than the automatic model.
Tilt/Swivel: pin-grab quick-coupler with 90° of movement each way, hydraulic and mechanical models
- Movement: Tilts and swivels the attachment into its working position.
- Hydraulic Operation: 90° of movement each way
- Variable Pin Centre Design: picks up OEM attachments with different pin spacing.
- Mechanical version: for carriers without a spare hydraulic circuit.
- Safety: Front and rear mechanical locks, a pilot operated check valve and a visual indicator of coupler state hold the attachment.
Dimensions
Dimensions in mm Dimensions in mm Dimensions in mm
Which coupler is on your machine?
Pick the system on your machine and we put it in your enquiry. We check the bracket before we send the quote.
How to measure your coupler
Not sure which system it is? Three measurements tell us which bracket you need.
- Measure the diameter of both pins.
- Measure the distance between the pin centres.
- Measure the width between the inside faces of the ears.
If the coupler has a make or type printed on it, send that too.
Safety
- Attachment not fully engaged
- The front mechanical safety lock holds the attachment, so it does not fall if the rear has not engaged.
- A visual indicator shows the operator whether the coupler has engaged.
- Loss of hydraulic pressure
- A pilot operated check valve works as a further hydraulic lock on the coupler.
- Accidental release
- The rear mechanical safety lock keeps the coupler engaged.
- Loading machines…
Models and specifications
Figures as printed on this family’s datasheet. A dash means the datasheet does not state that figure.*Disclaimer: specific weight and dimensions depend on the model of excavator. Data above is approximate.
Datasheet (PDF)- Which bracket does your machine take? See the coupler fit reference
- Looking for your machine by make and model? See the machine fit tables
| Model | Operation | Machine class [t] | A [mm] | B [mm] | C [mm] | D [mm] | E [mm] | F [mm] | Weight [kg] | Tilt size | Holding torque [Nm] | Working pressure [bar] | Tilt angle [°] | Get a price |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| QC-PG-40 | Automatic | 4–5 | 220–280 | 150 | 40 | – | – | – | 80 | – | – | – | – | Get a price |
| QC-PG-45 | Automatic | 4–5 | 220–280 | 160 | 45 | – | – | – | 82 | – | – | – | – | Get a price |
| QC-PG-50 | Automatic | 5–9 | 275–370 | 180 | 50 | – | – | – | 90 | – | – | – | – | Get a price |
| QC-PG-55 | Automatic | 6–9 | 275–370 | 180 | 55 | – | – | – | 95 | – | – | – | – | Get a price |
| QC-PG-60 | Automatic | 7–13 | 355–460 | 250 | 60 | – | – | – | 210 | – | – | – | – | Get a price |
| QC-PG-65 | Automatic | 11–15 | 355–460 | 250 | 65 | – | – | – | 210 | – | – | – | – | Get a price |
| QC-PG-70 | Automatic | 15–18 | 365–490 | 250 | 70 | – | – | – | 260 | – | – | – | – | Get a price |
| QC-PG-80 | Automatic | 16–25 | 385–530 | 300 | 80 | – | – | – | 400 | – | – | – | – | Get a price |
| QC-PG-90 | Automatic | 24–35 | 475–565 | 325 | 90 | – | – | – | 440 | – | – | – | – | Get a price |
| QC-PG-100 | Automatic | 30–40 | 500–640 | 370 | 100 | – | – | – | 740 | – | – | – | – | Get a price |
| QC-ML-M-30 | Manual | 0.9–2 | 185 | 120 | 30 | – | – | – | 14 | – | – | – | – | Get a price |
| QC-ML-M-35 | Manual | 2–3 | 215 | 135 | 35 | – | – | – | 22 | – | – | – | – | Get a price |
| QC-ML-M-40 | Manual | 3–5 | 250 | 155 | 40 | – | – | – | 32 | – | – | – | – | Get a price |
| QC-ML-M-45 | Manual | 5–8 | 280 | 175 | 45 | – | – | – | 45 | – | – | – | – | Get a price |
| QC-ML-M-50 | Manual | 8–11 | 310 | 195 | 50 | – | – | – | 58 | – | – | – | – | Get a price |
| QC-ML-M-55 | Manual | 9–13 | 340 | 215 | 55 | – | – | – | 81 | – | – | – | – | Get a price |
| QC-ML-M-60 | Manual | 11–20 | 375 | 235 | 60 | – | – | – | 105 | – | – | – | – | Get a price |
| QC-ML-M-65 | Manual | 14–29 | 400 | 255 | 65 | – | – | – | 132 | – | – | – | – | Get a price |
| QC-ML-M-70 | Manual | 18–33 | 435 | 275 | 70 | – | – | – | 167 | – | – | – | – | Get a price |
| QC-ML-M-80 | Manual | 30–35 | 495 | 315 | 80 | – | – | – | 245 | – | – | – | – | Get a price |
| QC-U-PG-40 | Tilt / swivel | 4–5 | 220–280 | 150 | 40 | 382 | 248 | 485 | 140 | 125 | 8.2 | 210 | 180 | Get a price |
| QC-U-PG-45 | Tilt / swivel | 4–5 | 220–280 | 160 | 45 | 392 | 264 | 485 | 142 | 125 | 8.2 | 210 | 180 | Get a price |
| QC-U-PG-50 | Tilt / swivel | 5–9 | 275–370 | 180 | 50 | 453 | 297 | 640 | 204 | 160 | 17.5 | 210 | 180 | Get a price |
| QC-U-PG-55 | Tilt / swivel | 6–9 | 275–370 | 180 | 55 | 453 | 297 | 640 | 209 | 160 | 17.5 | 210 | 180 | Get a price |
| QC-U-PG-60 | Tilt / swivel | 7–13 | 355–460 | 250 | 60 | 580 | 410 | 792 | 352 | 200 | 24.0 | 210 | 180 | Get a price |
| QC-U-PG-65 | Tilt / swivel | 11–15 | 355–460 | 250 | 65 | 620 | 410 | 802 | 376/396/416 | 240 | 34.0 | 250 | 100/140/180 | Get a price |
| QC-U-PG-70 | Tilt / swivel | 15–18 | 365–490 | 250 | 70 | 668 | 410 | 812 | 462/496 | 250 | 40.0 | 250 | 100/140 | Get a price |
| QC-U-PG-80 | Tilt / swivel | 16–25 | 385–530 | 300 | 80 | 740 | 492 | 915 | 669/701 | 260 | 43.0 | 250 | 100/140 | Get a price |
| QC-U-PG-90 | Tilt / swivel | 24–35 | 475–565 | 325 | 90 | 805 | 533 | 972 | 805/862 | 290 | 80.0 | 250 | 100/140 | Get a price |
| QC-U-PG-100 | Tilt / swivel | 30–40 | 500–640 | 370 | 100 | 965 | 606 | 1100 | 1435 | 350 | 90.0 | 250 | 100 | Get a price |
→ Scroll the table sideways to see every model.
– = not specified for this size
Compliance, certification & documentation
- EN ISO 3834-2Certified welding qualityCSW/1293/2025
- EN 1090-1 EXC1 + EXC2Factory production control1433-CPR-0257
- EN ISO 9606-1 · WPQR EN ISO 15614Qualified welders and procedures
- EN ISO 9712: VT + PT level 2Non-destructive testingwhere the drawing or inspection plan requires it
- EN 10204 3.1Material traceability
- CE: 2006/42/ECCE markingTransition to Regulation (EU) 2023/1230 underway. Applicable from 20 January 2027.
Warranty
12 months warranty on manufacturing defects in the components Sieruta makes itself.
Normal wear, misuse or overloading and unauthorised modifications are not covered. Warranty terms and claims
Why buy from the factory
- Cutting, machining, welding and painting on one site, our own factory in Poland, EU
- More than 50,000 attachments delivered since 2008
- A record for every serial number, so the spare parts match your attachment
Request a quote
Tell us your machine and the job. An engineer checks the fit, and we usually reply within 1 working day.