Engineered specifically for the high-impact zone of SDMIX KT30 series concrete mixers, our high-chromium bottom liner provides exceptional protection where wear forces are most concentrated.
Brand:
SDMIXOrder(MOQ):
1000kgGoods Stock:
1000Payment:
T/T, L/C, Paypal, Western UnionMarket Price:
$2Price:
$27/1000kgPrice Range:
5000 - 10000/$26Price Range:
1000 - 5000/$26.5Product Origin:
AnhuiColor:
CustomizedShipping Port:
ShanghaiLead Time:
15-30days| Description: |
Engineered specifically for the high-impact zone of SDMIX KT30 series concrete mixers, our high-chromium bottom liner provides exceptional protection where wear forces are most concentrated. Manufactured through ISO9001-certified production processes, each bottom liner is preccision-cast using advanced lost-foam and vertical flaskless molding technologies, achieving material density of 99.8% to eliminate structural imperfections amd ensure reliable performance under extreme abrasive conditions. This precision manufacturing guarantees consistent quality and extended service life, capable of withstanding over 350,000 cubic meters of concrete mixing operations.
The liner utilizes our proprietary high-chromium alloy composition with strategic additions of molybdenum and vanadium, refined in medium-frequency induction furnaces to create a uniform carbide network with optimized hardness of 55-60HRC. This advanced metallurgical structure provides superior abrasion resistance, delivering 4.2X longer service life than conventional liners while maintaining dimensional stability under heavy impact loads. Independent testing verifies these bottom liners achieve tensile strength of 46-N/mm² and impact toughness of ≥7.8J/cm², ensuring reliable performance in the most demanding mixing environments.
Our digital manufacturing process incorporates finite element analysis to optimize the liner geometry for perfect SDMIX KT30 compatibility, with CNC machining achieving ±0.18mm dimensional accuracy for seamless installation. The specialized surface treatment reduces material adhension by 60%, preventing concrete buildup and maintaining optima l mixing efficiency throughout the liner's operational lifespan. Backed by comprehensive technical support and digital lifecycle management tools, these bottom liners represent the pinnacle of wear solution technology for modern concrete production facilities seeking to minimize downtime and reduce total operating costs.
| Features and Advantages |

Impact-Optimized Design - Specifically engineered for bottom position with specific thickness and 55-60 HRC hardness for extreme wear resistance
Extended Operational Life - Verified performance exceeding 380,000 cubic meters with 57% lifespan improvement.

Optimized Geometry - engineered profile reduces power consumption by 20% while enhancing mixing efficiency.
Optimized Stress Distribution -engineered design reduces stress concentration by 45% in high-impact areas
Intelligent Production: Vertical flaskless molding line guarantees batch consistency.
| Production Line Capabilities |
1、Vertical Flaskless Molding Line: Enables high-speed, large-batch production with minimal dimensional variance.





2、Lost Foam Casting: Delivers complex geometries and smooth surfaces for precise fitment.





3、Medium-Frequency Induction Furnace: Ensures uniform melting of high-chromium alloys (Cr content 15-28%).





| Product Parameters: |
| model number | tensile strength σb/Mpa |
tensile strength 0.2/Mpa |
elongation(%) | Fyi | ||
| new model number | equal old model number | minimum value | minimum value | minimum value | HBS Brinell hardness(BHS) |
main metallographic structure |
| QT400-18 | QT40-17 | 400 | 250 | 18 | 130-180 | ferritle |
| QT400-15 | - | 400 | 250 | 15 | 130-180 | ferritle |
| QT450-10 | QT42-10 | 450 | 310 | 10 | 160-210 | ferritle |
| QT500-7 | QT50-5 | 500 | 320 | 7 | 170-230 | ferritle+pearlite |
| QT600-3 | QT60-2 | 600 | 370 | 3 | 190-270 | pearlite+ferritle |
| QT700-2 | QT70-2 | 700 | 420 | 2 | 225-305 | pearlite |
| QT800-2 | QT80-2 | 800 | 480 | 2 | 245-335 | pearliteor tempered structure |
| QT900-2 | - | 900 | 600 | 2 | 280-360 | bainite or tempered martensite |
| Chemical composition(Mass fraction)(%) | |||||||||
| C | Si | Mn | Cr | Mo | Ni | Cu | S | P | |
| KmTBN14Cr2-DT | 2.4~3.0 | ≤0.8 | ≤2.0 | 1.5-3.0 | ≤1.0 | 3.3~5.0 | - | ≤0.10 | ≤0.15 |
| KmTBN14Cr2-GT | 3.0~3.6 | ≤0.8 | ≤2.0 | 1.5-3.0 | ≤1.0 | 3.3~5.0 | - | ≤0.15 | ≤0.15 |
| KmTBCr9Ni5 | 2.5~3.6 | ≤2.0 | ≤2.0 | 7.0-11.0 | ≤1.0 | 4.5~7.0 | - | ≤0.15 | ≤0.15 |
| KmTBCr2 | 2.1~3.6 | ≤12 | ≤2.0 | 1.5~3.0 | ≤1.0 | ≤1.0 | ≤1.2 | ≤0.10 | ≤0.15 |
| KmTBCr8 | 2.1~3.2 | 1.5~2.2 | ≤2.0 | 7.0~11,0 | ≤1.5 | ≤1.0 | ≤1.2 | ≤0.06 | ≤0.10 |
| KmlBCr12 | 2.0~3.3 | ≤1.5 | ≤2.0 | 11.0~14.0 | ≤3.0 | ≤2.5 | ≤1.2 | ≤0.06 | ≤0.10 |
| KmTBCr15Mo | 2.0~3.3 | ≤1.2 | ≤2.0 | 14.0~18.0 | ≤3.0 | ≤2.5 | ≤1.2 | ≤0.06 | ≤0.10 |
| KmTBCr20Mo | 2.0~3.3 | ≤1.2 | ≤2.0 | 18.0~23.0 | ≤3.0 | ≤2.5 | ≤1.2 | ≤0.06 | ≤0.10 |
| KmTBCr26 | 2.0~3.3 | ≤1.2 | ≤2.0 | 23.0~30.0 | ≤3.0 | ≤2.5 | ≤2.0 | ≤0.06 | ≤0.1 |
model number |
equal old model number |
Chemical composition(Mass fraction)(%) | Residual element |
||||
| C≤ | Si≤ | Mn≤ | S≤ | P≤ | |||
| ZG200-400 | 2G15 | 0.20 | 0.50 | 0.80 | 0.04 | 0.04 | Cr≤0.35,Ni≤0.30,Mo≤0.20,Cu≤0.30,v≤0.05;but Cr+Ni+Mo+Cu+v≤1.00 |
| ZG230-450 | ZG25 | 0.30 | 0.50 | 0.90 | 0.04 | 0.04 | Cr≤0.35,Ni≤0.30,Mo≤0.20,Cu≤0.30,v≤0.05;but Cr+Ni+Mo+Cu+v≤1.00 |
| ZG270-500 | ZG35 | 0.40 | 0.50 | 0.90 | 0.04 | 0.04 | Cr≤0.35,Ni≤0.30,Mo≤0.20,Cu≤0.30,v≤0.05;but Cr+Ni+Mo+Cu+v≤1.00 |
| ZG310-570 | 2G45 | 0.50 | 0.60 | 0.90 | 0.04 | 0.04 | Cr≤0.35,Ni≤0.30,Mo≤0.20,Cu≤0.30,v≤0.05;but Cr+Ni+Mo+Cu+v≤1.00 |
| ZG340-640 | ZG55 | 0.60 | 0.60 | 0.90 | 0.04 | 0.04 | Cr≤0.35,Ni≤0.30,Mo≤0.20,Cu≤0.30,v≤0.05;but Cr+Ni+Mo+Cu+v≤1.00 |
| Packaging & Shipment |
| FAQ |
1.Q: Could you introduce your company’s business nature and production qualifications?
A: A: We are a professional manufacturer specializing in high-wear-resistant alloy components. Our in-house casting and machining facilities ensure full control over quality, cost, and lead time.
2.Q: How can I place an order?
A: Simply share your requirements via email or through our online system. We’ll promptly prepare a proforma invoice (PI) with detailed pricing and delivery terms for your confirmation.
3.Q: What core material systems do you utilize?
A: We employ engineered materials such as high-chromium cast iron, ductile cast iron, cast steel, and alloy steel. Material selection is scientifically optimized based on specific operational conditions and performance requirements.
4.Q: What payment methods do you support?
A: We accept international trade settlement methods including T/T and L/C. Flexible payment terms can be negotiated for long-term strategic partners.
5.Q: Do you offer customized branding services?
A: Yes, we provide end-to-end customization solutions covering industrial design, mold development, and product marking.
6.Q: How does your quality assurance system operate?
A: Our facility features professional-grade inspection equipment and a three-stage verification protocol: Incoming material inspection; Batch-specific process quality validation; Pre-shipment certification.
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