| After-sales Service: | Yes |
|---|---|
| Warranty: | 6 Months |
| Certification: | ISO9001:2015 |
| Standard: | Jb/T1674-2004 |
| Surface Treatment: | Painting |
| Manufacturing Process: | Machining |
| Samples: |
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| Customization: |
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Suppliers with verified business licenses
Audited Supplier Factory Maxdrill rock tools Yn27c Rock Drill for Small Hole Drilling mining
Construction
1.Engine: The engine is a hand operated, single cylinder and two stroke petrol engine with air cooling, re-flux air conversion, no contract ignition, and no floating-type carburetor. It is conposed of control parts,shield parts,magneto parts and piston parts and cylinder parts.
2.Air compressor: The engine piston and hammer piston are mounted separately in the upper and lower place of the cylinder. These two pistons move up and down synchronously. The hammer piston and the bigger bore of the cylinder form a compression chamber, which together with air inlet and outlet valves and ventilator valves, form the air compressor. It is composed of hammer piston parts and cylinder parts.
3.Rock drill: It is composed of hammer piston parts,rotation mechanism parts, drill chuck parts.
| Specifications | Y20 | Y24 | YT27 | YT28 |
| Weight(Kg) | 18 | 24 | 27 | 26 |
| Total Length(mm) | 605 | 605 | 668 | 661 |
| Working Pressure(Mpa) | 0.4 | 0.4-0.63 | 0.63 | 0.63 |
| Impact Frequency(Hz) | ≥34 | ≥27 | ≥27 | ≥37 |
| Air Consumption(L/S) | ≤25 | ≤53 | ≤83.3 | ≤81 |
| Air Pipe Inner Dia.(mm) | 16 or 19 | 19 | 25 | 25 |
| Shank Size(hex.mm) | 22x108 | 22x108 | 22x108/25x108 | 22x108 |
| Bore Dia.(mm) | 30-40 | 34-42 | 34-45 | 34-42 |
| Hardness(f=) | 8-18 | 8-18 | 8-18 | 8-18 |
The information you may like to know before order:
1. Methods of Payment:
T/T (Telegraphic Transfer) or Western Union or L/C at sight
2. Handling time for an order
Based on order quantity, normally it takes 25 days for production.
Only 2 or 3 days if we have stock on your request size.
3. Shipping way
Sample order: we suggest Courier express like DHL/UPS/TNT/FEDEX or by air
Bulk order: we suggest by air or by sea.
4. Quality Control
We have our own experienced QC.
There will be strict inspection and testing for every order before shipping out.
5. After Services:
a. Our sales team will response for your question within 24 hours (Holidays Excluded)
b. Technical Support will be available in any time
c. Free replacement will provide once the failure confirmed caused by our product quality
Suppliers with verified business licenses
Audited Supplier 
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