The 40-ton (36.29 mt) lifting capacity Link-Belt HTC-8640HL (Heavy Lift) boasts all of the outstanding features of the HTC-8640, in addition to an additional 5, 000 lbs (2, 268 kg) of counterweight for a total of 9, 700 lbs (4, 400 kg) that significantly increases the lifting capacity and gives this model one of the strongest load charts in the three-axle 40-ton (36.29 mt) capacity truck crane class.

To account for the increased counterweight, the Heavy Lift Version Features 

• On-highway 330 hp Cummins ISL engine with Jake Brake
• Heavy-duty rear axles
• Larger rear tires 12R22

Comes with a 105' (32.00 m) full-power, four-section boom with a quick-reeve boom head for a 162' (49.38 m) maximum tip height with the Optional 51' (15.54 m) two-piece (bi-fold) lattice fly offsettable to 2°, 20° and 40°.

Crane Features 

• Full-deck aluminum fenders
• Pilot-operated hydraulic control
• On-highway

While no longer in production, this model is still fully supported by authorized Link-Belt Crane distributors and was replaced by the HTC-8640 SL.