• Model NO.：HW421
• Drill Hole Depth：<100m
• Bit Type：Diamond Bit
• Drilling Way：Impactor
• Dimensions(L*W*H)：6000X2800X2750mm
• Total Weight：6800kg
• Diesel Engine Power：162kw
• Drill Depth：20m
• Hole Diameter：80-115mm
• Working Pressure：14.5bar
• Dry Dust Collector：Yes
• Transport Package：Roro Ship
• Specification：6800kg
• Trademark：HW
• Origin：Shandong
• HS Code：8430509000
• Production Capacity：10000sets,Year

                                       air compressor built-in  surface DTH mine drilling rig for quarry                                                                                     ModelHW421Machine Weight6800kgEngineYuchai  162 kWDrill Pipe Sizes60 X 3,000 mmHole Dia80-115 mmWorking Pressure15 barF.A.D12 m3/minTramming Speed ( Max.)3 km/h (High Speed)Gradient25°Track Frame Oscilation±10°Transportation Dimensions6000X2800X2750 mm





1.Adopt container transportation, and take reinforcement measures to prevent
the machine from being damaged, so that customers receive the machine in good condition.2.We have close ties with the top ten shipping companies in the world and can
provide you with the best shipping quotations and the most timely follow-up information.
Product Certificate

 Shandong Hengwang Group Co,.Ltd

Jining Hengwang Construction Machinery Co., Ltd. is located in Jining City,
Shandong Province. We are specialized in manufacturing drilling rig and pile driver.
With an experienced and professional team, we have exported our products
to many countries and regions all over the world, especially in the Middle East,
Africa and South America. Our products enjoy a good reputation among our customers.
We welcome customers, business associations and friends from all parts of the world to
contact us and seek cooperation for mutual benefits.
FAQ

 Q1. Are you manufacturer or trader?
A: We are manufacturer of construction machines. Actually, we produce most of the parts in our own factory for better
cost and quality control.Shandong Haitui is the exporting center of all Haitui brand machines.

Q2. What is your terms of payment?
A: T/T 30% as deposit, and 70% against copy of B/L. 

Q3. How about your delivery time?
A: Generally, it will take 30 days after receiving your advance payment. The specific delivery time depends 
on the items and the quantity of your order. Sometimes we have some in stock.

Q4. Are you interested in dealership with local company?
A: Yes, we are quite interested in this business. We'd like to cooperate with some local partner to sell more World
machines in local market and supply better service.

Q5. What is your warranty policy?
A: We can supply one year warranty or 2000h for our machines. We will provide parts as free within warranty.
We can send engineer to customer place if big quality problem. We can provide internet or calling service at any time.

Q6. Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery