Manufacturing & production process

The success of our customers inspire us to new achievements
MAXA RockDrills Limited is a global diversified company with a network of production and commercial branches worldwide.

Our production process is designed to accommodate a range of customer specifications, while meeting our inhouse quality standards.
We formulate and develop the production steps required for the different designs of DTH rockdrilling tools. We utilize CNC programmable machines to execute various steps of our manufacturing processes, with selected machine tools, sequence and running profile.
The utilization of such programmable machines enables us to automate parts of our manufacturing process. We also make use of different types of machines to carry out other manufacturing processes.

The following diagram illustrates the major production process of our principal products

Our major production processes include.

  • Cutting and Shaping. We utilize conventional lathes and CNC lathes to shape our alloy steel, which we obtain from our suppliers in cylindrical blocks, into the desired shapes, and also to include bores within the alloy steel blocks as appropriate, which will be further refined in the next steps of our manufacturing process.
  • Processing of precise elements of products. We utilize our CNC machining centre, milling machines, slotting machines and drilling machines to cut our alloy steel blocks to incorporate finer details including precise holes and joints into our products.
  • Smoothening, finishing and heat treatment. We then send our products to our grinding machines and sand blasting machines to refine the finishing of our products. Our sand blasting machine helps remove sharp edges from our products and our grinding machine helps to polish the surfaces of certain components, such as the piston within our down-the-hole hammers, and to minimize friction in the operation of our products, thereby increasing their durability.
    We then send our products to our grinding machines and sand blasting machines to refine the finishing of our products. Our sand blasting machine helps remove sharp edges from our products and our grinding machine helps to polish the surfaces of certain components, such as the piston within our down-the-hole hammers, and to minimize friction in the operation of our products, thereby increasing their durability.Our products may also undergo various stages of heat treatment, which are designed to improve the hardness of the final product.To insert tungsten carbide buttons into our casing systems, button bits or bit openers, we drill holes into the alloy steel body, and then measure the diameters of each hole drilled and pair it with a suitably sized tungsten carbide button. The alloy steel bodies are then sent to our oven machine for heating: during the heating process, the drilled holes will expand in size, and the tungsten carbide buttons will then be inserted into the enlarged holes. The holes will contract upon cooling to hold the tungsten carbide buttons firmly in place.
  • Assembly of finished products. Finally, we put together the various components to assemble the final product.

Quality control

We have adopted a comprehensive quality control system. We administer measures that ensure final product quality, by conducting a wide range of quality control tests at different stages of our production process.

Raw materials quality control

All incoming raw materials used in our production processes are subject to inspection upon receipt at our factory, before being warehoused. We conduct sample inspections and tests on our raw materials when they are delivered to our manufacturing facilities, to ensure that they are in accordance with our standards. We document all quality control checks on all raw materials and conduct regular reviews on our suppliers. Raw materials that fail to meet our standards are returned to our suppliers for corrective measures or for replacement at the supplier’s own cost.

Production quality control

Our quality control personnel monitor our production processes to ensure consistency in the quality of our products. Work-in-progress products are checked by the designated quality control personnel before being passed on to the next stages of production. The quality control personnel at the next stage of production re-examines the work-in-progress products received, to ensure there are no defects before the products are further processed. For example, the diameters of the tungsten carbide buttons which form part of our casing systems, button bits and bit openers are measured to differences of 0.0001 mm, and then sorted into various groups for insertion to ensure maximum fitting.

Product quality assurance

At the end of the production process, we physically inspect our products on a sampling basis to verify that their mechanical and dimensional properties and strength meet quality standards and specifications before delivery to our customers. In addition, we conduct a full test run of all of our down-the-hole hammers before delivery to our customers.

Distributor and customer feedback

We relay feedback from distributors and customers on product quality issues to our quality control staff, who implement corrective measures in our quality control procedures when necessary.

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What we do

MAXA RockDrills Limited has been supplying reputable and specialized drilling contractors globally with DTH rockdrilling tools, with some clients taking part in major infrastructure project who have high standards on DTH rockdrilling tools. Moreover, technical support and other aftersales and value added services such as repairing services are also offered. With a successful track record of engineering projects, our Group has maintained good business partnerships with the major clients in the industry.

Global Marketplace

We operate globally in the DTH rockdrilling tool industry.

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Stages of our quality control system

All incoming raw materials used in our production processes are subject to inspection upon receipt at our factory, before being warehoused. We conduct sample inspections and tests on our raw materials when they are delivered to our manufacturing facilities, to ensure that they are in accordance with our standards. We document all quality control checks on all raw materials and conduct regular reviews on our suppliers. Raw materials that fail to meet our standards are returned to our suppliers for corrective measures or for replacement at the supplier’s own cost.

Our quality control personnel monitor our production processes to ensure consistency in the quality of our products. Work-in-progress products are checked by the designated quality control personnel before being passed on to the next stages of production. The quality control personnel at the next stage of production re-examines the work-in-progress products received, to ensure there are no defects before the products are further processed. For example, the diameters of the tungsten carbide buttons which form part of our casing systems, button bits and bit openers are measured to differences of 0.0001 mm, and then sorted into various groups for insertion to ensure maximum fitting.

At the end of the production process, we physically inspect our products on a sampling basis to verify that their mechanical and dimensional properties and strength meet quality standards and specifications before delivery to our customers. In addition, we conduct a full test run of all of our down-the-hole hammers before delivery to our customers.

We relay feedback from distributors and customers on product quality issues to our quality control staff, who implement corrective measures in our quality control procedures when necessary.

We carry out work in accordance with the planned schedule. This document is an integral part of the contract. All stages will be carried out on time.

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    MAXA RockDrills Limited is a global diversified company with a network of production and commercial branches worldwide. Our company is engaged in the production of down-the-hole hammers, casing systems (comprising driver bits and casing bits), buton bits, bit openers, drill pipes, cluster drills and casing tubes. We also source rockdrilling equipment and piling and drilling machineries.