The SQ4SA4 is a 4 ton telescopic boom truck crane. It lifts 4,000 kg at 2.5 m, 2,600 kg at 3.42 m and 400 kg at its full 9.42 m reach, with an 8.4 t·m maximum lifting moment and 360° slewing. The crane itself weighs 1,780 kg and needs only 800 mm of space behind the cab.
What the 4 ton SQ4SA4 is built for
The SQ4SA4 has a four-section straight boom that runs out from 3.6 m to 9.6 m. Its light weight and small footprint suit light and medium trucks: it stands 2,270 mm high when stowed, so most of the bed stays free for cargo. Typical work is delivering building materials, pallets and bagged goods, lifting pumps, generators and small machinery, setting precast parts and poles, and roadside maintenance. Raised to 75° with the boom fully extended, the hook reaches about 11 m.
Rated capacity always depends on radius. At 5.42 m the SQ4SA4 lifts 1,600 kg and at 7.42 m it lifts 900 kg, so check the weight of your heaviest regular load at the distance you need before you choose a tonnage. If your loads must go over walls or into tight spots, compare it with the 4 ton knuckle boom crane.
Load at each radius
Figures from the SQ4SA4 load chart with the boom horizontal. Raising the boom shortens the radius and adds capacity: fully extended to 9.6 m at 75°, it lifts 1,400 kg at 2.5 m. Download the SQ4SA4 load chart (PDF)
Mounting it on your truck
The SQ4SA4 mounts on a truck chassis behind the cab. These are the figures your body builder needs from the dimension drawing:
Send us your truck make, model and wheelbase, and we check that the chassis and power take-off suit the crane before you order. Download the SQ4SA4 dimension drawing (PDF)
All telescopic boom truck cranes · How to choose a telescopic crane
Optional attachments
- Hydraulic gripper opened and closed by its own cylinder to grab and release loads.
- Clamshell bucket for loading, unloading and light digging of waste, chippings and soil.
- Orange peel grab for scrap and bulk material.
- Timber grapple for logs and timber.
- Auger for tree-planting holes, utility poles, foundation piles and soil sampling.
Certification
The SQ4S series holds a CE certificate of conformity under the EU Machinery Directive 2006/42/EC.
Choosing the right model
Need more than 4 t? The next class up is the SQ5SA4 at 5 t. For lighter loads, the SQ3.2SA4 at 3.2 t is the class below.
Before ordering, check that the truck's power take-off can deliver 25 L/min at 20 MPa. We recommend 16 kW of hydraulic power. Its self weight of 1780 kg adds to the load on the truck, so allow for it in the payload.
