Dieffenbacher SWPM Refiner 44MK-12 for Casting Services

In the pulp and paper manufacturing industry, the Dieffenbacher SWPM 44MK-12 refiner is a cornerstone of efficient fiber processing, where its performance heavily relies on the durability and precision of its core components. Our specialized casting services are dedicated to manufacturing high-performance replacement discs and wear parts specifically engineered for this robust machine. We ensure authentic OEM compatibility and enhanced operational longevity through advanced metallurgical solutions and precision-controlled manufacturing processes.

Premium Wear-Resistant Materials
We utilize high-performance alloys specifically formulated to withstand the extreme abrasive conditions inside the 44MK-12 refiner:

• High-Chromium White Iron (HCWI): Premium grades (ASTM A532 Class III Type A) with 25-28% chromium content, delivering exceptional hardness (62-65 HRC) and superior resistance to wood fiber abrasion.

• Nickel-Chromium White Iron (Ni-Hard): Provides excellent as-cast hardness and a cost-effective solution for specific pulp types and processing conditions.

• Special Alloy Steels: Custom-engineered for applications requiring a critical balance between high surface hardness and core toughness to resist impact from tramp metal.

Every melt is verified through spectral analysis and microstructural examination to guarantee consistent chemical composition, hardness, and wear performance across all production batches.

Precision Manufacturing and Machining Process
Our integrated production system ensures dimensional accuracy and mechanical reliability for optimal refiner operation:

1. Advanced Molding Technology: We employ resin sand molding and the NOSAKA process to produce large-diameter disc castings with exceptional dimensional stability, precise pattern definition, and sound internal integrity.

2. Controlled Heat Treatment: A critical, multi-stage process of austenitizing, quenching, and tempering is applied to develop the optimal martensitic microstructure. This maximizes abrasion resistance while providing the necessary toughness to prevent catastrophic failure.

3. CNC Machining: Critical features—including mounting surfaces, bolt holes, and the center bore—are precision-machined on CNC equipment. This guarantees perfect fitment, alignment, and, most importantly, dynamic balance, which is vital for smooth, vibration-free operation at high rotational speeds.

4. Rigorous Quality Assurance: Each component undergoes dimensional inspection (using CMMs) and non-destructive testing (like dye penetrant) to validate surface and internal quality. Hardness is mapped across the working surfaces to ensure uniform wear resistance.

Key Performance Advantages

• Extended Service Life: Superior materials and heat treatment significantly extend operational periods between plate changes, reducing downtime and maintenance costs.

• Consistent Fiber Quality: Precisely replicated grinding patterns ensure uniform fiber fibrillation and size distribution, which is critical for pulp quality.

• Energy Efficiency: Optimized plate design and smooth surfaces help reduce the specific energy required for refining.

• Operational Reliability: Excellent dynamic balance protects the refiner's bearings and mechanical seals from vibration-induced damage, ensuring long-term machine health.

Our technical team provides comprehensive support for pattern selection and operational optimization. We ensure prompt delivery to minimize your production downtime. Contact our engineering specialists today for detailed product specifications and a competitive quotation for your Dieffenbacher SWPM 44MK-12 refiner needs.

_{Introduction to}

Pallmann refiner PALLMANN is the leading manufacturer of size reduction machinery for the wood products industry. PALLMANN designs, manufactures and supplies tailor-made, individual or complete solutions for the processing of raw material for MDF, OSB and particleboard plants. At its headquarters in Zweibrücken, PALLMANN company operates the world‘s largest research and development center for size reduction technology as well as a training and service center. Numerous machines are available for the preparation of various raw materials including subsequent laboratory analysis on individual scale. Our global presence is ensured by our sales network for machinery as well as spare parts and after-sales service. A brand new Pallmann refiner system PR (Pressurized refiner), example refiner models are: PR48, PR58, PR62(62 inch).

Product descriptions from the supplier

Plate change for Andritz 58” refiner in MDF flooring producer, Jiangsu

Product name：	Grind segment
Specification：	14-16",17-18",20-24",26-30",42-48",52-58",CC450
Material：	Nickel hard alloy Steel
Usage：	Inox Stainless Steel Metal
Color：	Natural
Shape：	Customized Shape
Feature：	Durable
MOQ：	1 Piece
Warranty	3 years

Introduction to Andritz refiners
ANDRITZ, a key player in the MDF and pulp and paper industry, manufacture it’s famous pressurized refining systems. The ANDRITZ single-disc refiners, equipped with the signature swing door design, enhance efficiency for plate changing process. Their comprehensive solution covers everything from debarking and chipping to screening, washing, and refining.

Andritz refiner models: 45/49-1CP; 50/54-1CP; 54/60-1CP

Welcome to Dandong City Pengxin Machinery Co.,Ltd, a leading specializing in the design and production of high-quality refiner plate / segment fillings. With a strong emphasis on innovation and customer satisfaction, we offer a comprehensive range of refiner plates (refiner spare parts) that are compatible with renowned brands such as Andritz, Pallmann, Valmet / Metso / Sunds, Zhongfoma (China Foma), and Dieffenbacher SWPM. With over 20 years of professional experience in the refiner plate industry, PENGXIN has established itself as a trusted and reliable partner. We take pride in our state-of-the-art manufacturing facility, equipped with advanced technology, a professional laboratory, and an extensive design database. Our diverse range of alloy formulas and numerous pattern designs allow us to cater to various material and fiber requirements. At PENGXIN, we are committed to optimizing the performance of the refining process based on customer feedback. We strive to strike the perfect balance between fiber quality, energy efficiency, and throughput. Through continuous improvement and collaboration, we aim to exceed customer expectations and deliver exceptional results. Our refiner plates (refiner spare parts) are manufactured using specialized heat treatment processes and precision machining, ensuring a reasonable material composition and high wear resistance. The outstanding value for money offered by PENGXIN products has earned us an excellent reputation in the domestic market. Now, we are excited to bring our prominent product to the international market. If you are seeking new opportunities to significantly reduce costs and optimize production in an increasingly competitive market, we invite you to discuss with us. Our dedicated team is ready to provide tailored solutions and assist you in achieving your goals.Join us in revolutionizing the refining process and unlocking the full potential of your operations. Experience the PENGXIN advantage today and discover a new dimension of efficiency, reliability, and success.

Product research and development technology with the world, and in the same industry in the world, has a strong processing capacity and cutting-edge technology, has to "Pengxin" in the grinding industry has a pivotal position.

Q1. What is the advantage about your company?
A1. Our company has professional team and professional production line.
Q2. Why should I choose your products?
A2. Our products are high quality and low price.
Q3. The logo and the color can be customized?
A3. Yes, we welcome you to sample custom.
Q4. Any other good service your company can provide?
A4. Yes,we can provide good after-sale and fast delivery.