4.6 Ton Knuckle Boom Truck Mounted Crane

What the 4.6 ton BLZ90K4 is built for

The BLZ90K4 folds its boom into a compact package behind the cab: stowed, it is 2,462 mm wide and 2,158 mm high. It needs 800 mm of installation space behind the cab. It suits medium trucks delivering blocks, bagged cement, pallets and precast items, and loading small machinery on and off the bed.

Rated capacity always depends on radius. At 6.09 m the BLZ90K4 lifts 1,525 kg and at 7.9 m it lifts 1,140 kg, so check the weight of your heaviest regular load at the distance you need before you choose a tonnage.

Load at each radius

Figures from the BLZ90K4 load chart with the boom horizontal. Do not lift more than the chart shows at your working radius. Download the BLZ90K4 load chart (PDF)

Mounting it on your truck

Your body builder mounts the crane on the chassis behind the cab, using these figures 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 BLZ90K4 dimension drawing (PDF)

Warranty and service

BOB-LIFT covers the whole crane for 12 months. Common spare parts leave the factory within 48 hours, and our service team answers within 12 hours and can guide repairs by video. Cranes ship from Lianyungang, Qingdao or Shanghai.

All knuckle boom truck cranes · How to choose a knuckle boom 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 BLZ90K series holds a CE certificate of conformity under the EU Machinery Directive 2006/42/EC.

What the 4.6 ton BLZ90K5 is built for

The BLZ90K5 folds its five-section boom into a compact package behind the cab: stowed, it is 2,450 mm wide and 2,160 mm high and needs only 800 mm of chassis length, so it fits medium trucks and leaves most of the bed free for cargo. Its five boom sections give an 11.7 m horizontal reach, so it can place loads well away from the truck, over walls and fences or onto upper floors. That suits building material deliveries, signage and utility work. With the boom raised, the tip reaches about 13.8 m above the crane base.

Rated capacity always depends on radius. At 8 m the BLZ90K5 lifts 1,000 kg and at 9.85 m it lifts 750 kg, so check the weight of your heaviest regular load at the distance you need before you choose a tonnage. If you need more capacity at a similar reach, the BLZ129K4 6.3 ton knuckle boom crane lifts 1,295 kg at 8.25 m.

Load at each radius

Figures from the BLZ90K5 load chart with the boom horizontal. Do not lift more than the chart shows at your working radius. Download the BLZ90K5 load chart (PDF)

Mounting it on your truck

The BLZ90K5 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 BLZ90K5 dimension drawing (PDF)

All knuckle boom truck cranes · How to choose a knuckle boom 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 BLZ90K series holds a CE certificate of conformity under the EU Machinery Directive 2006/42/EC.