Project Time: Feb 2021

Project Location: Oman

Inquiry Products: 300 PCS VSI Anvils

Material: Cr26Mo1

Horizon is an Oman crusher plant and wear parts supplier, that cooperation with Astec Inc. Combining the individual successes of Astec Mobile Screens, Breaker Technology, KPI-JCI, Osborn, and Telsmith, Astec Aggregate and Mining has developed extensive support capabilities and unique product offerings specifically designed to serve the mining and aggregate processing industries.

They have a customer who uses a mobile VSI crusher to cast rock ore. However, the original anvils just can work around 250 hours. The user wants to prolong the anvils span life, need 400 hours at least. After a long time meeting in Oman, we find a local laboratory to analyze the crushed stone. The reports as the following:

Chemical Analysis Of Rock
Report number:	Stone-288994-3		Source:	Horizon crusher
Project number:	Not Specified		Sample location:	Not Specified
Project name:	Quality Purpose		Sampled by:	Client’s representative
Consultant:	Not Specified		Sample date/time:	15/05/2020
Contractor:	Not Specified		Samnline method:	Not Specified
Client ref./request no.	Not Specified		Sample delivered by:	Client’s Representative
Sample description as identified by the client	Rock sample		Date tested:	17/05/2020-23/05/2020
Sample size:	Not Specified		Tested by, name/location:	SD/RAK, DXB
Test method:	1. Manual of Procedures for Chemicals & Instrumental Analysis of Ores, Minerals, and ore dressing products 2. ICP-OES
Parameters	Units	Results
Loss On Ignition at 1000℃	% by weight	4.73
Silicon dioxide	% by weight	56.88
Aluminum Trioxide	% by weight	14.18
Ferric Oxide	% by weight	6.15
Calcium Oxide	% by weight	7.91
Magnesium Oxide	% by weight	6.64
Chromium Oxide	% by weight	0.34
Sodium Oxide	% by weight	0.24
Potassium Oxide	% by weight	0.96
Chloride	% by weight	Less than 0.01
Sulphate	% by weight	0.07

DETERMINATION OF DENSITY & WATER ABSORPTION OF’ROCKS AT ATMOSPHERIC CONSTRUCTION INDUSTRY RBSEACH AND INF’ORMATION ASSOCIATION CIRIA THE ROCK MANUAL , CIRIA C683 – Chapter 3:2007 / BS EN 13383-2 : 2013 Clause 8
Report number:	Stone-288994-1		Source:	Horizon crusher
Project number:	Not Specified		Sample location:	Not Specified
Project name:	Quality Purpose		Sampled by:	Client’s representative
Consultant:	Not Specified		Sample date/time:	15/05/2020
Contractor:	Not Specified		Moisture condition of sample as received :	Dry
Client ref./request no.	Not Specified		Sample delivered by:	Client’s Representative
Sample description as identified by the client	Rock sample		Date tested:	17/05/2020-23/05/2020
Sample size:	150 kg approximately		Tested by, name/location:	AN/SHJ
Parameters	Results
The density of the rock (SSD basis), kg/m3	2940
Water Absorption, %	0.2

UN CONFINED COMPRESSIVE STRENGTH OF INTACT ROCK CORE SPECIMENS ASTM D 2938.95
Report number:	Stone-288994-2		Source:	Horizon crusher
Proiect number:	Not Specified		Sample location:	Not Specified
Proiect name:	Quality Purpose		Sampled by:	Client’s representative
Consultant:	Not Specified		Sampline date/time:	15/05/2020
Contractor:	Not Specified		Moisture condition of sample as received :	Dry
Client ref./request no.	Not Specified		Sample delivered by:	Client’s Representative
Sample description as identified by the client	Rock sample		Date tested:	17/05/2020-23/05/2020
Sample size:	150 kg approximately		Tested by, name/location:	AN/SHJ
Parameters	Results
Sample ID	288994/1	288994/2	288994/3
CONDITION OF CORE AS RECEIVED	Normal	Normal	Normal
LENGTH AS RECEIVED max./ min (mm)	N/A	N/A	N/A
DIAMETER(mm)	50	50	50
LENGTH AFTER TRIMMING (mm)	100	100	100
TEMP. OF TEST(℃)	24	24	24
MOISTURE CONDITION	Dry	Dry	Dry
RATE OF LOADING (KN/S)	0.5	0.5	0.5
MAXIMUM LOAD. KN	237.7	195.9	227.4
COMPRESS STRENGTH, N/mm2	121.1	99.78	115.8
TYPE OF FRACTURE	Satisfactory	Satisfactory	Satisfactory

Through analyzing the raw material, Hunan JY Casting started to manufacture Cr26Mo1 anvils for Oman customers. Several months ago, our anvils work around 460 hours which based on customer feedback.