STANDARD ALLOYS INDIACarbon and low-alloy steels
Cast carbon or low-alloy steel to the original specification.
ASTM A27 · ASTM A148 · IS 1030 · IS 2644 · EN 10293
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Toggle plates
The toggle carries the crushing force from the pitman to the frame. In many crushers it is also the part designed to give way first if uncrushable material enters.
- Works in
- Toggle plates and toggle seats of jaw crushers.
- Industries
- Mining, Aggregate
- Materials
- Carbon or low-alloy steel
- Size
- Single pieces from 3 kg to 7 tonnes, to drawing
- Supplied
- As cast, or machined to drawing
- Inspection
- Chemistry and hardness on every heat; UT, MPI or DPT and a dimensional report as specified
- From a worn part
- Yes. Send the part or photographs with key dimensions and we will reverse-engineer it
01
How it fails and what we do about it
- 01Wear at the toggle seatsSeat profile cast or machined to drawing.
- 02Fatigue crackingSound steel and controlled heat treatment.
- 03Breaking too early, or not at allGrade and section kept exactly to the original design, because the toggle is a safety element.
02
Choosing the grade
Typical values from the governing standards. A metallurgist confirms the grade for your duty with every quotation.
03
What we control
- Profile to drawingPatterns made from the drawing or from a worn sample and kept on file for repeat orders.
- Fast quenchManganese parts go from furnace to water in about 45 seconds for full toughness.
- Machined seatsSeating faces and bores turned on vertical lathes, then checked with gauges.
- Surface checkedDye penetrant on manganese steel; magnetic particle and ultrasonic testing on structural steel.
04
For a quotation, send any of these
- Equipment make and model, or the OEM part number
- Drawing, or the worn part or photographs with key dimensions
- The grade used today and the life it gives
- Quantity per set and sets per year
No drawing? Send the worn part or photographs with key dimensions and we will reverse-engineer it.
Toggle plates
A metallurgist reviews every enquiry and replies with a price, a lead time or the right questions.
Or call +91 145 269 5110
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