The BT 3870 is a 19 USt maximum lifting capacity boom truck with 70 ft main boom.
The TM 3851 is no longer in production.
- 19 USt (17.3 t) @ 5 ft (1.5 m) capacity at rated distance from center of rotation
- 51 ft (15.6 m) maximum boom length
- 18/29 ft (5.5/8.8 m) optional jib
- Quick reeving dual sheave boom head