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Technical Resources
Selection guides, an alloy and material reference, and the specific information we need in order to quote each product family. Written for engineers and buyers who have a decision to make before they can raise an enquiry — ungated, with no email address required to read any of it.
01 / Selection guides
The decisions that have to be made before an enquiry exists.
Most of what a buyer needs is not a catalogue. It is help choosing between two materials, or knowing which limit applies. These are the reference tables and design rules published across this site, indexed in one place.
02 / Materials reference
Wear parts — what goes where, and why.
Compiled from the parts we actually ship into mining and cement plants. Where a Chinese grade is given, the nearest ASTM equivalent is shown alongside it — they are close, not identical, and we will tell you when the difference matters.
| Application | Typical material | Notes |
|---|---|---|
| Jaw plates — fixed, movable, swing | Mn13Cr2 · Mn18Cr2 · Mn22Cr3 · TiC-inserted | Manganese work-hardens under impact, so it suits primary crushing. TiC inserts extend life where the feed is highly abrasive rather than simply hard. |
| Cone crusher mantles, bowl liners, concaves | Mn14 · Mn18 · Mn22 | Chosen against your abrasion index rather than by default. Cast and heat-treated to certified chemistry, with the heat number stamped on the part. |
| Impact crusher blow bars and impact plates | Martensitic steel · high-chrome iron · ceramic-inserted · TiC-inserted | Martensitic where impact dominates, high-chrome where abrasion dominates, ceramic or TiC inserts where both do. The wrong choice here halves service life. |
| Bimetallic wear plates, chocky bars, CCO and overlay plate | High-chrome on mild steel, vacuum-brazed · tungsten carbide · TiC | For chutes, hoppers, transfer points and liners rather than crushing chambers. |
| Ball, rod and SAG mill liners and shell liners | Mn steel · alloy steel · high-chrome · rubber · composite | A trade-off between wear life, mill weight and noise. Supplied match-marked to an installation sequence with a written re-torque schedule. |
| Grinding media | Alloyed cast balls · forged balls | Hardness and chemistry certified per heat, with the spectrometer report issued against the batch. |
| Conveyor idlers and pulleys | Hub ZG235-450 (≈ ASTM A27) · shaft 40Cr (≈ ASTM A29M) · shell Q235 (≈ ASTM A283M) | Pulleys to 2.2 m diameter and 400 t tension. Idler production line rated at 800,000 rollers a year, with bearing life above 50,000 hours. |
| Kiln, cooler and hot-gas castings | Heat-resistant alloys | Grate plates, cooler castings, burner and hood components for cement and lime duty. |
Casting standards: ASTM A128 (manganese), ASTM A532 (high-chrome white iron), AS 2027, GB/T 5680. Chemistry is spectrometer-tested per heat and the report carries the heat number stamped into the casting. Full detail on Crushing & Milling and Castings & Forgings.
03 / Enquiry checklist
What we need, by product family.
A quotation is only as good as the information behind it. This is the minimum that lets us price properly instead of hedging — and the fastest way to get a real number rather than a placeholder.
| Wear parts | Machine make, model and equipment number · the worn part, or photographs with measurements at the points we specify · current wear life and change-out interval · feed abrasion index and particle size distribution |
|---|---|
| Castings & forgings | Drawing or the part itself · material specification and standard · NDT requirement and acceptance criteria · quantity and expected repeat interval |
| FRP equipment | Liquor, concentration and pH · operating and design temperature · basin, deck or structure survey for retrofit work · your house laminate specification if you have one |
| PTFE and lined equipment | Fluid, concentration and trace contaminants · temperature range and maximum excursion · whether the line or vessel sees vacuum, and to what level · cleanliness grade if electronic or ultra-pure |
| Pressure equipment | Mechanical data sheet or P&ID extract · code, class and jurisdiction · third-party involvement required · your inspection and test plan |
| Pumps & piping | Flow, head and NPSH available · solids concentration, specific gravity and particle size distribution · operating temperature and pH · line list or isometrics for a package |
| Valves & dampers | Tag list · face-to-face dimension and flange rating · body and trim materials · actuation, fail position and signal · testing and certification required |
| Separation equipment | Process data sheet · basin or filter deck survey · underflow density and rake torque duty for thickeners · machine make and model where you are matching an existing unit |
| Anything at all | If you only have a photograph and a part number, send that. We will tell you what is still missing rather than guess and quote something that does not fit. |
04 / Documents
Available on request, from a person.
We do not put a form in front of a PDF to harvest an email address. Ask for what you need and a named engineer sends it, usually the same day — and you get someone who can answer a question about it rather than an automated download.
| Product presentations | Wear parts for mineral processing · spare parts for the cement industry · FRP scrubber and duct systems · FRP shut-off valves and dampers · steel tanks, piping and process equipment · pumps · water treatment equipment |
|---|---|
| Capability statement | Company, capability envelope, quality system, standards worked to, and named references — the document a procurement department asks for before adding a supplier. |
| Reference list | Named clients with the equipment supplied and the year, released with the customer’s permission for the specific project you are asking about. |
| Quality documentation samples | A redacted example of a manufacturing data book — material certificates, weld map, NDT reports, test records and photographic history — so you can see the standard before you order. |
Still not sure which material is right?
Send the duty — the fluid, the temperature, the abrasion, the pressure — and we will tell you what we would specify and why, before you commit to anything.