Construction Equipment Parts
JK Casting makes heavy equipment castings and construction machinery parts to your drawing, including housings, hubs, brackets and mounts, in carbon steel, ductile iron and grey iron. Bucket teeth can also be quoted from a drawing or sample. Send drawings for a quotation.
Parts are supplied raw or CNC-machined for OEM and replacement buyers. Send the drawing, material and quantity so the casting route can be reviewed before quotation.
Representative parts from our product gallery. Material, process and inspection for your part are confirmed against your drawing.
Buyer Answer
JK Casting reviews custom castings and their machining for construction equipment OEMs and replacement-part buyers. Typical parts include hubs, bearing housings, brackets, mounts and covers. Send drawings or a sample for drawing review. Carbon steel, ductile iron and grey iron are our regular materials; see steel castings and gray and ductile iron castings. The grade and process must suit the part. Stainless steel and special grades need a separate feasibility check before quotation.
Housings, hubs and brackets with thick sections and cored bores are normally sand cast in ductile iron, grey iron or carbon steel, including resin-coated shell moulds where a cleaner surface helps. Smaller steel brackets and clevises with ribs and several functional features can suit investment casting, which reduces machining. In both routes the functional bores and faces are machined to the drawing.
Typical Components
Use the categories below as a starting point. Final geometry, material, machining, coating, and inspection follow your drawings and operating conditions.
Custom hub and bearing housing castings for heavy equipment, supplied raw or with specified machining. Define the central bore, locating shoulder, flange face and bolt pattern against the same drawing datums. Use the machined housing RFQ checklist.
Linkage parts, pivot bosses and attachment components. Supply interface dimensions, load direction, material and the wear surfaces the drawing calls out.
Bucket teeth, adapters and related wear parts made to the profile and fit on your drawing. See how to specify a tooth.
Track guides, supports, and mounting brackets. Identify contact surfaces, hole positions, working clearance, and coating requirements.
Construction equipment housing castings, including gearbox bodies, covers and carriers. Identify the bore alignment, sealing faces, mounting datums and machining allowance. The quotation covers the specified housing component, not an assembled gearbox.
Construction machinery cast brackets, cylinder mounts and clevises made to drawing. Define the ribs, mounting holes, pin bores and contact faces, separating as-cast surfaces from machined interfaces. Include the specified grade, working loads and quantity per part number.
Replacement castings for equipment rebuilders and parts suppliers. Include part references, sample measurements, batch size, and forecast repeat demand. See replacement metal parts.
Ground Engaging Tools
JK Casting supplies bucket teeth and related ground engaging tools as custom castings to your drawing or sample, not as a stock tooth catalog. Teeth are cast in low-alloy wear-resistant steel, heat treated to the hardness the drawing specifies, or in high-manganese steel (ZGMn13 type). Send the tooth profile, adapter interface, material or hardness requirement and quantity.
The photos show bucket teeth JK Casting has made to buyers’ drawings and samples. The numbers cast on them are the buyers’ part references; the profiles are examples of drawing-based work, not a stock catalog. Castings are quoted per part.
Housings, Brackets & Custom Parts
Housings and brackets are the most common heavy equipment castings. Both are made to the buyer’s drawing or sample, cast in carbon steel, ductile iron or grey iron, and supplied raw or with the functional features CNC-machined.
Gearbox and reducer bodies, bearing housings, covers and carriers with thick walls and cored bores are normally sand cast in ductile iron, grey iron or carbon steel. Bearing bores, sealing faces and mounting faces are machined to the drawing datums, so bore alignment and the as-cast surfaces should be marked on the drawing. A housing is quoted as a component, not as an assembled gearbox.
Cylinder mounts, clevises, support brackets and mounting brackets are sand cast in ductile iron or carbon steel; smaller steel brackets with ribs and several functional features can be investment cast to reduce machining. Pin bores, mounting holes and contact faces are machined. Where a bracket is part of a welded assembly, welded fabrications can be quoted together with the castings.
Parts are made to order for small to medium batches and repeat supply, not from a stock catalog. One- or two-piece orders are rarely economical because a casting needs tooling first. Without a drawing, JK Casting can scan a sample and prepare a drawing for your approval; see making a casting from a sample.
Scroll sideways to see all columns
| Part | Usual materials | Casting route | Typical machined features |
|---|---|---|---|
| Hubs and bearing housings | Ductile iron, grey iron, carbon steel | Sand casting | Bore, shoulder, flange face, bolt holes |
| Gearbox and drivetrain housings, covers | Grey iron, ductile iron | Sand casting | Bore alignment, sealing faces, mounting datums |
| Hydraulic mounts and cast brackets | Ductile iron, carbon steel | Sand casting; smaller steel brackets by investment casting | Pin bores, mounting holes, contact faces |
| Linkage and pivot parts | Carbon steel, ductile iron | Sand casting or investment casting | Pin bores, pivot bosses, wear surfaces |
| Undercarriage and track components | Carbon steel, ductile iron | Sand casting | Contact surfaces, hole positions |
| Bucket teeth and ground engaging tools | Low-alloy wear-resistant steel (quenched and tempered) or high-manganese steel (ZGMn13 type) | Confirmed per drawing | Adapter fit faces as-cast or machined |
Typical starting points, not design rules. The grade and route for each part are confirmed against the drawing; stainless steel and alloy steel are reviewed part by part.
Scroll sideways to see all columns
| Material | Regular grades and equivalents | Grade chart |
|---|---|---|
| Ductile iron | QT400-15 to QT600-3; EN-GJS-400-15 to EN-GJS-600-3; ASTM A536 60-40-18, 65-45-12, 80-55-06 | Ductile iron grades |
| Grey iron | HT200, HT250, HT300; EN-GJL-200 to EN-GJL-300; ASTM A48 Class 30 to 40 | Gray iron grades |
| Carbon steel | ASTM A216 WCB (WCC when the drawing calls for it), ZG230-450, ZG270-500 | Cast steel grades |
| Wear-resistant steel | Low-alloy wear-resistant steel (quenched and tempered); high-manganese steel ZGMn13 type | Bucket teeth |
Equivalents are approximate; the standard on your drawing governs, and a substitution needs your approval.
From Drawing to Delivery
Material grade, casting method, machining sequence, surface treatment, and inspection are reviewed together. The foundry has operated in Gaomi since 2002, with inspection carried out in-house. The quotation defines any required heat treatment, coating, tests, and accompanying records.
Review wall thickness, load paths, draft, and machining allowance through sand casting and lost-wax investment casting. Material and the complete manufacturing scope are confirmed in the quotation. Sand casting vs investment casting compares the two routes, and the ductile iron, gray iron and cast carbon steel grade charts show how the standards line up.
Define bores, faces, threads, and mounting datums for CNC-machined castings, including which surfaces remain as-cast.
Agree coating, material records, packing, and the inspection and report scope before ordering, including the acceptance criteria for your part.
Faster Quotation
For production or recurring supply, include the initial batch, expected annual demand, and delivery schedule. These inputs help compare tooling, machining, inspection, and packing costs across the program.
Part number, equipment model, drawing revision, and whether the project is new OEM production, a second source, or aftermarket supply.
Material grade, load or duty cycle, fits and tolerances, and critical dimensions.
Casting, machining, coating, assembly requirements, initial batch, expected annual demand, and planned delivery batches.
Inspection points, dimensional reports, packaging, and any project-specific acceptance criteria.
Component and Interface Review
For a custom heavy equipment hub casting, define how the bore, shoulder, flange and mounting holes locate the mating parts. The existing gallery photograph illustrates these interfaces; it does not establish a material grade or equipment compatibility. Order raw castings for your machining line or include the finished features specified on the approved drawing.
View the component reference · Prepare the interface information · Send your drawing
Buyer FAQ
Direct answers for OEM, repair, and replacement-part buyers preparing a heavy equipment casting RFQ.
JK Casting supplies drawing-based construction and heavy equipment castings, including brackets, housings, hubs, mounts and linkage parts, in carbon steel, ductile iron and grey iron. Send drawings or a sample with material and quantity through the online RFQ form. For machined housings also see the machined housing RFQ guide. Listed part families are not a stock catalog.
JK Casting reviews drawing-based hubs, bearing housings, gearbox and drivetrain housings, brackets, mounts, linkages, covers, and other cast and machined parts when buyers provide drawings, 3D files, samples, or technical requirements.
Yes. A replacement project can start from a physical sample, worn-part photos, equipment model, mating dimensions, and service information. Final feasibility depends on the available evidence, material, geometry, quantity, machining, and inspection requirements.
Send a 2D drawing or 3D model when available, plus material, quantity, critical dimensions, machining scope, coating, application or duty cycle, inspection requirements, and target delivery plan.
No. JK Casting supplies custom, drawing-based parts for OEM, repair, and replacement programs. Each RFQ is reviewed before quotation; listed part families do not confirm stock or automatic manufacturability.
Regular materials are carbon steel, ductile iron and grey iron. The grade on your drawing governs. Bucket teeth are cast in low-alloy wear-resistant steel or high-manganese steel. Stainless steel and other alloys are reviewed part by part.
Yes. A casting can be supplied raw, or CNC-machined on the bores, faces and mounting features shown on your drawing. JK Casting machines castings it supplies. Machining-only orders for parts cast elsewhere are outside this supply scope.
Yes. JK Casting supplies custom-cast bucket teeth and related ground engaging tools to your drawing or sample, not as a stock tooth catalog. Teeth are made in low-alloy wear-resistant steel, heat treated to the specified hardness, or in high-manganese steel (ZGMn13 type). Send the profile, adapter interface, material or hardness requirement and quantity.
There is no fixed upper part-weight limit. Each casting is reviewed from its drawing, and the process, tooling and price are quoted per part.
Yes, for small to medium batches and repeat orders. A casting needs tooling before the first part is poured, so one- or two-piece orders are rarely economical. Tooling and the price per part are quoted for each drawing.
Technical content reviewed by the JK Casting RFQ team. Last updated: .
Start with Your Drawing
Send the drawing revision, material and quantity for your housings, hubs, brackets or other equipment castings. Include the first production batch and expected repeat demand so the quotation covers tooling, samples and the required supply condition.
Compare casting quotations on the same scope
Includes an editable worksheet for your purchasing and engineering review.
For a carbon steel bracket, mount or housing, review the casting route alongside the grade, required condition and machined features. The quotation remains specific to your drawing and application.
