What is the working pressure for this hammer?

The recommended working pressure is 1.0-1.7Mpa.

What is the impact rate at 1.5 Mpa?

The impact rate at 1.5 Mpa is 28 Hz.

3.5-Inch Air Hammer Drill: Perfect for Heavy-Duty Tasks

Name: 3.5-Inch Air Hammer Drill: Perfect for Heavy-Duty Tasks
Brand: Changsha DTH Drill Construction Machinery Co., Ltd.
SKU: 1955095861

Hunan, ChinaChangsha DTH Drill Construction Machinery Co., Ltd.

US$320.00

1 Piece

Product profile

Customization

Available

Warranty

Unavailable

Manufacturing Process

Forging

Model NO.

DHD3.5

Material

Carbon Steel

Weight (Kg)

Diamater

82mm

Place of Origin

Hunan, China

Processing Type

Forging

Machine Type

Drilling Tool

Bit Shank

DHD3.5

Hole Range

90-110mm

Brand Name

CS Drill

Video Outgoing-Inspection

Provided

Type

High Air Pressure Hammer

Length(mm)

928

Net Weight(Kg)

25kg

Machinery Test Report

Provided

Transport Package

Wooden Box

Specification

928mm

Trademark

CSDRILL

Origin

China

Key features

Forged Carbon Steel Build: Crafted from premium carbon steel with forging process for high hardness and durability.

High Efficiency Drilling: Optimized for high-hardness rock environments with minimal failure rates and extended service life.

Flexible MOQ & Shipping: Minimum order quantity of just 1 piece with multiple shipping options including economy and premium.

OEM & ODM Support: Accepts custom designs and OEM/ODM orders supported by an experienced R&D team.

Trusted Manufacturer: Over 20 years of experience with own factory and long-term alliances with research institutes.

Comprehensive Testing: Video outgoing inspection and machinery test reports provided to ensure quality.

Secure Purchase Protection: Guaranteed delivery, secure payment methods, and comprehensive money-back guarantee.

Fast Delivery Options: Generally 15-25 days lead time, or 5-10 days if items are in stock.

Company profile

In-stock CapacityFast DeliveryR&D CapabilitiesProduct Certification

Changsha DTH Drill Construction Machinery Co., Ltd.

Hunan, China

Business Type: Manufacturer/Factory, Group CorporationExport Year: 2015-07-10Nearest Port: Shenzhen, ShanghaiAverage Response Time: ≤7.26hTerms of Payment: T/TInternational Commercial Terms(Incoterms): FOB, EXW, CFR

AI-Powered supplier vetting

SummaryThe supplier is identified as a trading company in Changsha, with a stated business scope covering mechanical equipment, hardware, electronic products, instruments, metal products, and general equipment manufacturing. It reports export experience of three years, exports accounting for 41%–50% of total sales, overseas agents or branches, and maintenance and repair services in countries including Peru, Brazil, and Argentina. Reported production capacities cover drilling rigs, reverse-circulation drilling tools, DTH hammers, drill bits, and drill pipes, while customization from samples and designs is available. The supplier holds ISO9001:2015 and CE certifications. Service procedures exist but lack written records, and no overseas warehouse or showroom is available. Financial information is indicated for 2021–2023, but no substantive financial performance details are provided. Innovation evidence is mixed: ODM and OEM services are available, but no new products were reported in the past year and no SDK is...

Supplier typeThe supplier is explicitly classified as a trading company, with its business scope covering sales of mechanical equipment, hardware, electronic products, instruments, leather products, metal products, and related equipment manufacturing. Its associated-company industry is listed as wholesale and retail, reinforcing its trading-oriented profile.

CertificationsThe supplier reports an ISO9001:2015 management-system certificate and CE product compliance certification. These are explicit certifications relevant to quality management and product conformity.

After-Sales capabilityThe supplier reports maintenance and repair services through overseas agents or branches in Peru, Brazil, Argentina, and other countries. However, its service assessment, corrective-action, and complaint-handling procedures have no written records, and it has no overseas warehouse or showroom, so the evidence supports service availability but not fully documented service controls.

Production capacityStated annual capacities include 500 drilling rigs, 8,000 reverse-circulation drilling tools, 10,000 DTH hammers, 500,000 drill bits, and 100,000 drill pipes, with inventory capability also reported. However, the supplier is classified as a trading company and its valid manufacturing-contract status is unknown, so the scale of directly controlled production is not fully established.

Customization capabilityThe supplier explicitly offers customization from samples and designs, as well as ODM services. This indicates capability to support customer-specific product requirements, although no examples or scope limitations are provided.

Product Q&A

Q:Are you a manufacturer or trading company?

We are both, we have our own factory. And also have many long-relationship factories.

Q:What is the minimum order quantity?

Our MOQ are 1pc or 1 complete set, the price may rely on the order quantity. We are welcome your sample order to testing our quality

Q:Can you accept OEM & ODM?

Yes, both of them are acceptable. Please tell us your requirements or design drawings kindly. As we have our own R&D team and the team leader is Dr. Zhao Mingchun who has been always in the material research and drawing design of drilling tools for 25 years. And he had designed the world's biggest top hammer bit and DTH hammer bit, highly praised by the users.

Q:How about the delivery time?

It depends, generally it takes about 15-25 days. Usually only 5-10 days if in stock.

Q:Can I have a visit to your factory before the order?

Sure, welcome, kindly contact us for address details and time schedule.