TR228H Rotary Drilling Rig

TR228H rotary drilling rig is specially designed to suit the following applications:

-Drilling with telescopic friction or interlocking kelly bar-standard supply

-Drilling cased bore piles (casing driven by rotary head or optionally by casing oscillator —CFA Piles by means of continue auger

-Either crowd winch system or hydraulic crowd cylinder system

-Displacement piles; Soil -mixing

Main Feature

• Retractable original CAT chassis with Efl turbocharged engine ensures the stability of thewhole machine meet the performance locations and construction environment Advanced main pump adopted negative flow constant power variable automatic control, which can realize the optimal matching in the load and the output power of engine.
• Width of crawler can be adjusted between 3000 and 4300m, counterweight moved back wards increases the stability and reliability
• The key components of the hydraulic system adopts Caterpillar hydraulic system as the maincircuit and the pilot control circuit With the advanced loading back technology, the flow be distributed to each part of the system according to needs, which achieves better match in various working conditions Pilot control makes the operation flexible, comfortable, exact and safe. Various kinds of hydraulic elements adopted world famous brand, such as Rexroth, Parker, etc. ensure the hydraulic system high reliability.
• Electric systems are from Pal-fin auto-control, optimal design of electric control system improvesthe control accuracy and the food back speed Equipped advanced automatic switch of manual automatically, and guarantee a verticality condition during operation
• Compacted Parallelogram structure reduces the length and height of the whole machine, thus reduce themachine’s requirement on the work space, easy transportation.
• TR228Hadopts professional rotary head equipped BONFIGLIOLI or BREVINI reducer, and REXROTH or LINDE motor, and rotary head available in three drilling modes-standard, low speed and big torque or high speed and small torque; spin-off is optional.
• The newest designed winch drum structure is to avoid steel wire rope tangling and lengthen the service life of steel wire rope.

Specification for standard Kelly bar

Friction Kelly bar: ∅440-6*14

Interlock Kelly bar: ∅440-4*14