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28Ton Horizontal Directional Drilling Machine | China ZLCONN ZL280A

1. ZL280A Horizontal Directional Drilling Machine Features and Advantages

Hunan ZLCONN horizontal directional drilling machines are worldwide popular machines,like India, Malaysia, Saudi Arab.. The 28t ZL280A HDD Machine is one of the hot cake among all the models. 

1) 132kw, Cummins Engine; 9 workshops of 60000sqm for HDD machine production

2) Double hardness steel material WL610. Making ZL280A horizontal directional drilling machine longer life .

3) horizontal directional drilling machines surface by electronicphoresis,10years no rust.. 

4) SAYI motor, Permco hydraulic pump,high slewing speed upto 136rpm high working speed.

ZL280A 28t Horizontal Directional Drilling Machine Specs

ZLCONN ZL280A 28T HDD Machine 
Cummins engine, American Permco main pump, American Eaton cycloidal motor as rotating motor and push-pull motor. The push-pull system is directly driven by 6 motors, with high power and fast speed; onboard 250L mud pump, brand rubber track, rack and pinion push-pull mechanism is equipped with an optional fully automatic rod loading device with rod box , and the power head box is integrally floating to protect the drill rod; the pilot controls the hydraulic system, and all main structural parts are painted with automotive electrophoresis.
一、ZL280A  Main Technical Parameters                             
NO.NameParameterNO. NameParameter
1Total Weight(Kg)8.79Dimension
(LxWxH)( mm)
2Max.push/Pull force(KN)28010Max.torque(N.m)9000
3Max.push/pull speed(m/min)4011Max.rotary speed
( r/min)
4Engine power(KW)13212Max.mud pump flow(L/min250
5Running speed(km/h)2.5-413Max.mud pump pressure(Mpa)8
6Entry drill angle(°)10~2014Max.grade ability(°)25
7Max.reaming diameter(mm)100015Max.distance(m)300(depending on soil condition)
8Drill rodΦ60*3000mm    
二、ZL280A Standard configuration of ZL280A   
NO. NameUnitQty.Remark
1EngineSet1Dongfen Cummins
2Hydraulic pump 100 63 50Set1Permco(US)
3Main rotary motor 6K-490Set4ETON(US)
4Travel motorSet2TOBIS(Korea)or China Leading 
5Push-pull motor 6K-390Set2ETON(US)
6Push-pull reducerSet2Ningbo
7rubber crawler Set2Zhejiang
8Mud pumpSet1Tongfang
9Hydraulic SystemSet1 
With the development of the technology, the product will improve constantly and the difference may emerge between goods and the technical  information here and in Brochure. The condition of the supply goods should be go on with the sell contract.

2. Knowledge you don’t want to miss –  ZLCONN  Horizontal Directional Drilling Machine Structure 01


Horizontal Directional Drilling Machine Chassis:

Integrally formed by whole big size rectangular thick steel (rather than welding),higher hardness than industry standard, suitable for big diameter and high-strength construction.
The coating uses car chassis electrophoretic coating technology, strong corrosion resistance.
Dual-speed motor as option, high speed for walking, low-speed for loading, stable and safe. Both wire control and wireless control as option.

Horizontal Directional Drilling Machine Power Unit (Rotating) :
Big brands: USA EATION./SAYI
Power unit is designed with high flowing system with 10mm, avoiding wrong operating, protecting rods screw, providing longer life span.
Dual speed rotating suitable for various different projects and processes ,max rotating speed upto 130m/min

Horizontal Directional Drilling Machine Main Beam (Push/Pull) :
Integral forming by big thickness shape steel ( rather than thin wall steel pipe), the track is by 40mm thickness steel plate, capable for high strength construction.
Installed with USA Brand high-torque plunger motor, push-pull system pressure increased by 30%, faster and more agile, much better than cycloid motors and ordinary piston motors.
Three-stage push-pull function as option, maximum push-pull speed up to 34m/min

Horizontal Directional Drilling Machine Gripper:
The reamer and drill bit can be directly pulled into the retractor mechanism for loading and unloading; the equipment is equipped with roller seat, making sure the drill rod in the centre.
Each gripper sheet can be individually controlled to ensure centering is synchronized and holding is synchronized.
Clamp unit is designed with high flowing system with 10mm, avoiding wrong operating, protecting rods screw.

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