China Products/Suppliers. High Air Pressure Without Valve DTH Hammer for Mining Drilling Rigs

Basic Info.

Model NO.	DTH Hammer
Material	Alloy Steel & Tungsten Carbides
Working Pressure	1.0-2.5MPa
Connection Thread	API 2 3/8" Reg
Recommended Rotation Speed	25-40r/Min
Air Consumption	145-350psi/200-600cfm
Impact Rate at 1.5MPa	28Hz
External Dimater	99mm
Hole Range	110-135
Bit Shank	Ql40
Weight	41.00kg
Length	1097mm
Transport Package	Plywood Carton or Plywood Pallet
Specification	QL40
Trademark	Maxdrill
Origin	China
HS Code	8431432000
Production Capacity	10000

Product Description

China products/suppliers.High Air Pressure Without Valve DTH Hammer for Mining Drilling RigsProduct ShowProduct Description
The Characteristics Of High Air Pressure DTH Hammer-with foot valveIt is a kind of valveless high air pressure DTH Hammer with foot valveIt has the following characteristics:Valveless air distribution. More reliable.Simple design of the piston, long life.More efficient energy transfer,faster drilling speed,lower air consumption and lower oil consumption.Fewer internal parts, simple structure,longer life,Less failure and easier to maintain because all the parts are heat treated.Easy to disassemble because the top sub, the drive chuck and theexternal cylinder are connected by multistep thread .Explanation of High Air Pressure DTH Hammer-With Foot Valve CodeExample One:MD55M-Maxdrill(Our company name )D-DHD Bit Shank5-5"hammer5-The Fifth Generation HammerExample Two:MQL4M- Maxdrill(Our company name )QL4-QL40 Bit Shank

High Air Pressure with foot valve DTH Hammers
Item	Item Description	Weight(kg)	Part Number
1	Top Sub	6.50	MQL401
2	"O"Ring of top Sub	0.01	MQL402
	Check Valve	0.42	MQL403
4	Spring	0.04	MQL404
5	Compression Buffer	0.04	MQL405
6	Air Distributor	2.50	MQL406
7	Internal Cylinder	2.30	MQL407
	Piston	9.00	MQL408
9	External Cylinder	17.00	MQL409
	Guided Sleeve	0.80	MQL410
11	"O"Ring of stop Ring	0.01	MQL411
12	Stop Ring	0.30	MQL412
13	Drive Chuck	3.00	MQL413
14	Drill bit		MQL414

Technical Data

Length(less bit)	Weight(Less bit)	External Diameter	Bit Shank	Hole Range	Connection Thread
1097mm	41.00KG	99MM	QL40	110-135	API 2 3/8" REG
Working Pressure	Impact Rate At 1.5Mpa	Recommended Rotation Speed		Air Consumption
				145-350psi
1.0-2.5Mpa	28Hz	25-40r/min		200-600CFM

Production Process
Packing ShowCertificate ShowExhibition ShowWide Application
Workshop showFAQ

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
Contact Information
Contact Person:Ms Sherry Lee

Website:maxdrillrocktools.en.made-in-china.com