Tonchel Industry relies on its own casting and welding supporting production capacity to create integrated mechanical processing services including blank preparation, CNC precision machining, heat treatment, testing, and surface treatment. It focuses on precision machining of non-standard heavy equipment components, cast steel/cast aluminum/welded structural parts. Supporting processing based on drawings and samples, covering prototype sampling, small and medium batch production, and large-scale production, providing high-precision finished parts for industries such as petroleum equipment, wind power, woodworking machinery, testing equipment, and large machine tools, which can meet domestic supporting and foreign trade export needs.
1. Machinable blanks and material range
Blank type:
Cast aluminum parts, cast steel parts, ductile iron, gray cast iron, welded assemblies, forgings, profile bars/plates.
Processing material:
Carbon steel, low-alloy high-strength steel, stainless steel, manganese steel, chromium molybdenum steel, aluminum alloy, ductile iron, gray iron, etc.
2. Core processing technology and equipment capabilities
2.1 CNC milling processing: Longmen machining center, vertical machining center, can process large machine frames, bases, boxes, valve bodies, and shells, suitable for processing large flat surfaces, porous systems, complex cavities, and sealing surfaces, controlling flatness and positional tolerances.
2.2 CNC turning processing: CNC lathes, large vertical lathes, processing flanges, shafts, sleeves, rotary parts, inner and outer circles, end faces, conical surfaces, thread processing.
2.3 Boring Processing: Floor boring and digital boring machines are used for deep hole boring of box holes, cylinder bodies, and large castings bearing holes to ensure coaxiality and roundness.
2.4 Drilling, tapping, deep hole processing: bolt holes, oil passage holes, NPT pipe threads, special thread processing, suitable for pressure bearing components of petroleum equipment.
2.5 Grinding processing: flat grinding, external circular grinding, to achieve high-precision mating surfaces and reduce surface roughness.
2.6 Supporting processes: deburring, chamfering, heat treatment (annealing, quenching, stress relief), sandblasting, painting, passivation and other surface protection.
3. Typical processed component categories
Oil fracturing/cementing equipment: valve body, shell, flange, pump body, support, high-pressure connecting components
Wind power equipment: wind power bracket base, connecting flange, load-bearing box body
Large machine tools: precision machining of machine bed, column, worktable, and guide rail surface
Woodworking machinery: frame box, transmission seat, counterweight components
Experimental testing equipment: vacuum chamber shell, testing machine bearing platform, sealed box body
General heavy-duty machinery: brackets, connecting seats, gearbox housings, various non-standard structural components
4. Key service industries (consistent with casting and welding solutions)
4.1 Petroleum equipment: precision machining of parts for fracturing, cementing, and drilling equipment, processing of high-pressure sealing surfaces, threaded holes, and flange surfaces to meet pressure conditions.
4.2 Wind power equipment: Processing of large cast and welded bases and connecting components, strict control of processing stress and deformation, to ensure long-term fatigue load.
4.3 Woodworking Machinery: Batch precision machining of machine tool boxes, frames, and transmission seats to ensure assembly consistency and adapt to continuous high-frequency operations.
4.4 Testing Equipment: Vacuum chamber, mechanical testing machine platform, high flatness, high sealing requirements, ensuring air tightness and long-term dimensional stability.
4.5 Heavy duty machine tools: precision machining of large parts such as bed frames, columns, and workbenches to eliminate residual stresses in castings and ensure long-term accuracy of the machine tool.
4.6 Crane engineering machinery: Processing of load-bearing components such as suspension seats, hinged supports, and load-bearing brackets.
5. Full process integrated processing service
5.1. Initial Process Review DFM: Receive 2D/3D drawings, conduct process analysis, tooling design, and predict machining deformation; Evaluate the defects of castings/welded blanks, optimize machining allowances in advance, reduce scrap risks, and provide structural optimization suggestions.
5.2. Factory inspection of raw materials: re inspection of the appearance, size, and material of castings and welded parts, and investigation of defects in raw materials.
5.3. Design and production of fixtures: Customize specialized fixtures to ensure stable positioning and reduce form and position errors during multiple clamping operations.
5.4. CNC precision machining: sequential machining, first piece inspection, process inspection, and on machine inspection of critical dimensions.
5.5. Heat treatment process: post weld/pre machine stress, quenching and tempering, normalizing, releasing residual stress in the blank, and preventing deformation of the finished product during use.
5.6. Precision testing: Coordinate measuring instrument, micrometer, dial gauge, roughness meter, hardness tester; Can be equipped with material spectrum testing, NDT non-destructive testing, and provide a complete testing report.
5.7. Surface treatment: sandblasting, primer coating, rust prevention, passivation, etc., suitable for outdoor, humid, and corrosive working conditions.
5.8. Final inspection and packaging delivery: Full size re inspection, data archiving (material certification, heat treatment records, inspection reports), wooden box/rust proof packaging, supporting export packing.
6. Core advantages of the plan
6.1 Integrated casting and welding machine: Casting, welding, and mechanical processing are produced in a closed loop in the same factory, seamlessly connecting raw materials and precision machining, avoiding size matching errors between multiple suppliers, shortening delivery times, and reducing procurement management costs.
6.2 Proficient in machining difficulties of large parts and castings: Tailored machining allowances and stress relief processes for loose and deformed cast aluminum, cast steel, and cast iron blanks, effectively controlling machining deformation and suitable for domestic replacement of imported spare parts.
6.3 Full process quality traceability: three-level quality inspection system including first article, inspection, and final inspection; We can provide a complete set of information according to GB, ASTM, and DIN standards to meet the audit requirements of foreign trade customers.
6.4 Flexible orders: single prototype, small batch trial production, and large batch mass production can all be undertaken; Engineers provide DFM optimization to reduce processing costs.
6.5 One stop delivery of finished products: Customers can assemble them immediately upon receipt, without the need for secondary outsourcing processing, reducing the number of docking links.
6.6 Technical Support: Full process engineer coordination, processing technology review, size problem analysis, and technical support for component usage after delivery.
7. Collaboration Process
Requirement communication → Drawing/sample reception, process review and quotation → Tooling design and sample processing → First piece inspection confirmation → Batch mechanical processing → Heat treatment, deburring → Dimensional final inspection+NDT testing (as needed) → Surface treatment → Data organization, rust proof packaging → Delivery → After sales technical follow-up
Tonchel Industrial - Precision Machining Solutions
Tonchel Industrial provides one-stop CNC machining service, integrated with our casting and welding capacity. We machine cast aluminum, cast steel, ductile iron, welded assemblies, forgings and bar stock, including valve bodies, flanges, heavy frames, bases, housings for oil & gas, wind power, woodworking machinery, test equipment and large machine tools.
Available processes: CNC milling, turning, boring, drilling, tapping, grinding, heat treatment & surface coating. Strict quality control with CMM inspection, hardness test and material spectroscopy. Full test certificates available. We support prototype, low & mass production, complying with GB, ASTM, DIN standards for global OEM customers.