​​The secondary compression rotor and the secondary compression rotor are combined in a housing and driven directly by helical gears. Natural air enters the first stage through an air filter and mixes with a small amount of oil in the compression chamber while compressing the mixture to the interstage pressure. The compressed gas enters the cooling channel and comes in contact with a large amount of oil mist, thus significantly reducing the temperature. The cooled compressed gas enters the secondary rotor for a second compression, which is compressed to the final exhaust pressure. Finally, the compressor is discharged through the exhaust flange to complete the entire compression process.

​DRILL PANGOLIN is not only supplied the qualified DTH pneumatic air crawler rock drilling rigs, but also we supply outstanding drill bits with borehole 90-203mm. The outstanding drilling performances are satisfied by our customers worldwide.
Don't satisfy your drill bits?
Try us!

HAN-D50-DTH pneumatic crawler rock drilling rig is the classical model in DRILL PANGOLIN drilling rig series. There were over 300,00,000 units Ingersoll Rand CM351 are run well with great drilling performance in China in the last 35 years. It is also the classical model in the drilling machinery market of the Middle East.
The customer installs the rod storage device and sunshade on the HAN-D50-DTH down the hole air crawler rock drill, so it will be helped driller works better in hot weather.​

Advantage compare with other International brand:

• Bigger size : 5 Ton weight
• Maintenance : so easy
• Stability: almost none breakdown
• Spare parts supply: cheap with superb quality

We supply some parts of Hydrastar 200 & 300 hydraulic drifter,such as gear pinion,piston,front bushing,bronze drive of gear,front bearing sleeve.
Hydrastar 200 & 300 hydraulic drifter is one of famous drifter in mining drilling industry in the world,it is also a famous brand from EIMCO SECOMA.It is mainly installed in Quasar 1LP and Quasar 1FP underground tunnel drilling jumbos.
​We supply the qualified drilling rig parts at always.

Mining Indonesia is Asia’s largest international mining equipment exhibition and provides a professional platform for Indonesia’s mining industry to do business.

Now in its 18th edition Mining Indonesia is well known and respected amongst industry professionals. The show attracts industry leaders and key players in the global mining industry; to showcase the latest products and services in one venue, the Jakarta International Expo.

DRILL PANGOLIN's YUAN-PCR200 top hammer pneumatic crawler rock drilling rig is exhibited with our authorized dealer in Jakarta.

Rotary head of QIN-PCR200DTH pneumatic crawler rock drilling rig is exported to Europe again with 5 units.It will be replaced the old rotary head of Furukawa PCR200DTH.The excellent quality is proved by European customers.
Please contact us or our local dealer if your Furukawa PCR200DTH rotary head is going to be replaced.

Compare with hydraulic crawler rock drill: 
As the hydraulic system and diesel systems ability to adapt to the summer heat is weaker than a pneumatic crawler rock drill, and the difficulty of maintenance work volume greater than pneumatic drills. 
For example,Pakistan into rainy season (May - October) and dry season (November - April), rainy season hot and rainy, the temperatures between 20-40 degrees, the dry season temperatures between 30-50. 
For the hydraulic oil is also a serious deterioration than China, so compare with pneumatic crawler drill,the heat dissipation, maintenance, spare parts supply,etc,is a big problem.

This year the engineering and mining industry is still during the downturn, many drilling equipment underemployment, in addition, the Chinese Spring Festival is approaching, a lot of crawler rock drill is also close to downtime, storage in downtime of drilling rig is easy to overlook the problem of everyone, in fact, room for crawler drilling equipment and drill tools is very important when you start to use it .


How to make the drill rod storage?
Blowing, make sure all the water is dry inside of drill rod, then open the drill shank lubrication part, mainly, it’s the best when you can see the lubricating oil in the bottom of drill pipe.
Drill rod external should be clean, include the central part of drill pipe and screw thread part. Then cover on the connector of male & female, avoiding the dirty is gone inside.
The cover is small and cheap, but it can for avoiding dirty.
Storage and reuse for DTH hammer
Short term storage.Following the below step.
Blowing, make sure DTH hammer inside is dry entirely.
Filling one liter of drill shank oil from the top connector
Blowing again, about 10 seconds, it will make all the inner parts of DTH hammer is lubricated.
Same way with drill rod, cover on the top & bottom connector.
Lay down the DTH hammer as the horizontal position in the dry place.
Long term storage.A little bit different.
Blowing, make sure DTH hammer inside is dry entirely.
Unscrewing the top & bottom connector, disassemble the DTH hammer.
Checking, wipe all the inner parts of DTH hammer, it’s better to do it inside the workshop.
Use the suitable lubrication oil for all parts.
Assemble the DTH hammer, cover on the top & bottom connector.
Lay down the DTH hammer as the horizontal position in the dry place.
Three steps when reusing the DTH hammer
Disassemble the DTH hammer, checking all the inner parts, If you find that some parts of the surface oxide, you need to sandpaper polished appropriate partially oxidized. If you do not check, then put it into use directly, the DTH hammer is likely to cause premature failure.
Clean all parts, wipe clean, lubricated.
Cleaning lubricated parts, assembled into DTH hammer, ready for reuse.
Well, there are many drillers think like this, is it necessary to follow the above steps? The mining site condition is limited; we store it whatever we want usually.
OK, this is a good question, it’s also a secret of benefit. Some boss asks me, why other company annual benefit is higher than ours, we work in the same mining site, use the same pneumatic crawler drilling rig？The reason is now, you can save a lot if you store and maintenance for drill rods and DTH hammer with correct way.
Many drillers record the drill tools consume, e.g., how long the DTH hammer can work. Now the global mining market is still slow,the price of drilling hole per meter is going down continuously. So I suggest that all the boss pay more attention to the storage and maintenance of drill tools. You can have a try to see if the life of drill rod and DTH hammer is more extended than before if you follow our suggestion step. Definitely will save A LOT of your money.
I remember an Australian driller told me, the drill machine is more reliable than a human. You treat it well; then it treats you better. Look, our crawler rock drill is just like one year old, but we use it for three years now.