Delivery Time:45 working days after received your payment
Certification:SGS/CITIC Inspection Report

20Ton Steel Forging Frame For Mining Machine

Specifications:

LuoYang Gear Machining center has 4000 tons of free forging oil press, 3 tons of free forging hammer, Phi 1.2 meters and 5 meters in diameter and ring rolling machine CNC ring rolling mill, 50 tons, 10 tons of forging manipulator mounted reclaimer, 50 tons, 32 tons, 32 tons of crane bridge crane in Hoist, gas stations and gas heating furnace and heat treatment furnace. Can produce shaft 12 meters long, weighing 36 tons and ring a variety of high quality forged steel products 5 meters. With 40t, 10t, 5T standard, 3T, 1.5T electric arc furnace, 70 tons of 1t ladle refining furnace, smelting furnace, smelting equipment, the maximum lifting capacity of 200t bridge crane, Q76150B, Q3730, Q37100 large Shotblast cleaning machine, 9.5*14M, 7*12M computer control gas heat treatment furnace, 2.5* 5M computer control of quenching and tempering furnace and box type resistance furnace, heat treatment equipment, processing equipment of 10t/h resin sand regeneration, can undertake the largest single weight 200 tons of various types of steel casting blank. Machining center with VCT100-NC CNC double column vertical lathe, YK311000-6-LK CNC gear hobbing machine, TK6920/120 CNC boring and milling machine, T6922/L type floor type boring and milling machine, WD200 milling machine, CQ5263/1 vertical lathe, vertical lathe C5235B, in Z30100 CW61140-3M, the rocker drill press, M1432B cylindrical grinder, surface grinder, MT1300/H supporting tools and testing equipment, can produce all kinds of rough castings and machining products accessories.

42CrMo4(42CrMo4V) steel is often used for mechanical components that require case-hardending, particularly for mechanical applications that require high wear and fatigue contact resistances. These application also rely on standard survery hardness of about 600 HV and effective case depth greater than 200 μm.

With good heat treatment, rings could reach hardness standard that could meet the requirement of slewing rings application.

Normally, 42CrMo4 hot rolled rings\' end use is slewing ring bearings, need the heat treatment:Q+T to reach agreed hardness. Some times CK45 seamless rolled ring is another choice, it is more cheap for the raw material.

Application:	Metallurgy,Mechanical,etc..
Process	ingot → heat → forging → heat treatment(Q&T) → inspection  → rough machining → UT → 2nd heat treatment → finishing machining → inspection .
Standard:	ASTM or GB/T3077-1999
Material:	Steel (20CrMnMo, 42CrMo4, 18CrNiMo7-6, and S355+N etc.)
Packing:	plywood cases and pallets or as per customers\' requirements
Dimension	According to your drawings Max.OD: 1500mm Max.unit weight:250 tons
Processing & Delivery	Raw material  inspection →stock cutting→ heat→forging→  Heat treatment (Normalizing+ tempering) → Inspection →rough machining→UT→ 2nd Heat treatment → finishing machining →Inspection→packaging Shipping from Shanghai Port
Equipment	3600t, 2000t metal forging hydraulic press, 7m,3.5m rolling machines, different kind of vertical lathes 5m CNC drilling machine, various testing machines.
Heat treatment:	Normalized / Annealed / Quenched / tempered
Surface Treatment:	painting,plating,polishing,black oxide,transparent anti-rust oil
Quality control:	UT,MT,RT,PT,chemical composition test,mechanical property test,etc.
Report:	1, Raw material certificate(material chemical composition)  2, Heat treatment sheet report 3, Dimension inspection report       4, UT test report
Inspection:	Besides our in-house inspecion, you could also choose a third party inspection.
Standard:	ANSI,ASTM,ASME