Your Professional PWHT Heater Supplier

 

Our goal is to become your true partner in the field of PWHT heater in China. Qingdao Shuimu Induction Heating Equipment Co.,Ltd is an high technical company specializing in the industrial heating service. We have a skilled engineering team dedicated to refining every stage, from product development and process improvement to production oversight, ensuring every product delivered meets rigorous quality and performance standards. The price is competitive and the product is quality-assured, which is a good choice for your long-term cooperation.

 
 

MYD series of induction heating system are used for weld, bending, piping, coating, fitting, stress relief, pre-weld heat and post-weld heat treatment Input Voltage: 380V, 3 phase, 50/60HZ Output Frequency: 2KHZ ~ 30KHZ Output Power: 2KW ~ 40KW Cooling: air cooled Heating Speed: 5-400℃ per minute Heating temperature range: -30℃-900℃ Heating parts size range:¢100-1500mmor equal Induction coil: 10-45meters long high temperature cable with air cooled Temperature recorder: 6 Channels for temperature controlling Thermocouple: K Type (5-45 Meters long link cable) Size: 800*560*1350mm Net weight: 120kg; Packing size:900*660*1560mm, Gross weight: 155kg. The option parts of induction heating system Induction heating power Induction coil (Clamp induction coil) or (Soft induction coil) Connection cable for the convenient to link the coil and the heating power Temperature controller PLC touch screen Temperature recorder with printer K type thermocouple&connection cable Insulation Blanket And other part. MYD series induction heater to compare the resistant heat: Uniform High Speed Energy Saving: 30-80% Features Air cooling: working well at -10℃-40℃ Induction heating power: To heat the work job with insulation blanket around it. High heating speed and heating efficiency with little energy lost. PLC touching screen: Intuitive to see and easy to operate. Soft induction coil: Easy to wind on different work piece. The Removable opening Induction coil: easy to operate and move. Temperature recorder: Record the whole heating curve. Temperature Controller: Heating according to the heating requirement details with the ±3℃ tolerance. Applications&using fields Our MYD series heating system are air-cooled induction heating equipment with DSP system. Their main applications are pipeline heat, pre-weld heat, post-weld heat treatment, stress relief, injection mold heating, annealing, etc. Pre-heat:for coating, bending, fitting&unfitting, weld. Post-weld heat treatment: tank, boiler or other metal jobs Heating: mold heating, shipboard, zinc bath, large& irregular metal parts Pipeline heat: pipeline oil, pipeline gas, pipeline water, pipeline petrochemical and other pipeline material The using fields involved are petrochemical, oil and gas pipelines, aerospace, shipbuilding, steel, tanks, boilers, vessels, pressure vessels, cylinders, metal structure, spatial structure, railway bridges, electricity water, mine construction, vehicle manufacturing, nuclear power, mining, plastics processing, energy saving process, mold, screw barrel industries,etc. PWHT-post weld heat treatment Steel sheet weld preheating&PWHT Post weld heat treatment of electric power pipeline Hydrogen and Stress removing of special pipeline Hydrogen and stress removing after welding of boiler pipeline Press vessel weld preheat and PWHT Rack plate weld preheat &PWHT Roll surfacing weld preheating and heat treatment

 

Why Choose Us

Our services:

In the pre-sales stage, our team of experts will recommend the most suitable products according to the needs of customers and provide detailed technical consultation. During the sales period, we ensure timely delivery and provide installation guidance. For after-sales, we provide long-term technical support, warranty services and spare parts to help customers maximize the use of products and get reliable maintenance during use.

Our certificate:

Our company won the 2016 Excellent Enterprise Recommended Brand Award issued by Qingdao Newspaper Media Group. Our company's series of portable electromagnetic heaters are air-cooled heaters with multiple patents.

Production market:

Our company's products are very popular in the market and have customers in both domestic and foreign markets. Our main sales markets are America, Europe, Asia and other countries.

Customization requirements:

We are well aware that customers' requirements are different, so our company can design and manufacture according to your specific heating needs.

 

Advantages of PWHT Heater

 

Offshore Drilling Platform Weld Heat Treatment (PWHT) Will Be More Popular In The Future

Enhanced durability:

Pwht helps to create more durable welded components by reducing residual stresses and improving material properties.

Popular Induction Weld Heat Treatment Heater Wildly Applications Like Pipeline And Vessel Heat Treatment

Improved corrosion resistance:

Pwht can improve the corrosion resistance of certain metals, especially in harsh environments.

Portable Rail Weld PWHT Heater Is Easy To Move And Use In The Railway Bridge Building

Stress relief:

Pwht helps to relieve residual stresses caused by the welding process, which can lead to cracking or deformation.

 

Specification of PWHT Heater

 

Items

MYD-20KW Induction Heat Power

MYD-10KW Induction Heat Power

Input voltage

3*380V, 50/60Hz, 4 Wires

3*380V, 50/60Hz, 4 Wires

Input Current

1~30A

1~15A

Output Current

0~300A

0~200A

Output Power

1~20KW

1~10KW

Output Frequency

5~30KHZ

5~30KHZ

Thermocouple

K type

K type

Temperature system

Build in induction machine

Build in induction machine

Heating Temperature

Max650℃

Max500℃

Size

700 x 330 x 410 mm

650 x 310 x 410 mm

Weight

32kg

26 kg

Induction Heating coil

Length

10~20 M

10~20 M

Diameter

15 mm

15 mm

Temperature

-30~45℃

0~35℃

Pipeline Size

OD: 50~500mm Or equivalent

OD: 50~400mm Or equivalent

 

Types of PWHT Heater
 
 
 

Oven-based pwht machines:

The pwht oven or furnace provides an electrical heating source in horizontal or vertical orientations. It accommodates weldments of various shapes and sizes, including in-situ weldments. A temperature controller or crictical control parameter (ccp) typically governs the machine.

 
 

Mobile pwht machines:

They are also called pwht heaters or machines without a specified mounting type. Mobile pwht machines are easy and quick to install at the pwht weld location. This reduces the need to transport weldments to a fixed pwht machine.

 
 

Pwht machines with vessels:

This type of machine treats the weldment in a pressure vessel. An advantage of the vessel type is that it can use inert gases or steam as transfer mediums.

 
 

Combustion heated pwht machines:

A portable or trailer-mounted furnace is an example of a combustion-heated pwht machine. This type conducts post-weld heat treatment using propane gas. The machine works independently from the gas supply, thanks to its portable gas cylinders.

 

 

Features of PWHT Heater

 

 

Low-temperature service: For facilities parts like pressure vessels, pipe links, and nozzles, where there's a chance of fluctuating low temperatures down to -50°C in impact test zones, it's vital to perform the PWHT to enhance ductility and toughness.

 

Welding of high-strength steels: High-strength low-alloy steels (for example, steel grades A515 Gr. 70, LS, FC, or A537, etc.) often have a complicated microstructure that leads to high residual stress levels after welding. To counter this matter, potentially brittle materials like high-strength steels must be welded steel links utilizing a high-strength steel PWHT machine.

 

Application of PWHT Heater

Preheat:

Weld heat,coating, spraying, bending, fitting&unfitting heat.

Post-weld heat treatment:

Tank, boile, pipeline, steel sheet or other metal jobs.

Inductionheat:

Mold heating, shipboard, zinc bath, large& irregular metal parts.

Pipeline material heat:

Pipeline oil, pipeline gas, pipeline water, pipeline petrochemical and other pipeline material.

 

Packing and Shipping of PWHT Heater

 

Packing

Wooden box

Shipping

Shipped by road, sea, rail

 

FAQ

Q: What is the purpose of heat treatment PWHT?

A: PWHT's primary goals are to relieve stresses and enhance toughness, ductility, and impact resistance, among other benefits.

Q: Why is PWHT done?

A: PWHT is frequently performed to remove welding residual stresses, improve ductility and toughness, decrease hardness, relieve stress-related susceptibility to corrosion, enhance dimensional stability, and reduce internal stresses.

Q: What does PWHT mean?

A: Post-weld heat treatment is abbreviated as PWHT. After welding, components made of particular metals are subjected to heat treatment.

Q: What types of post-weld heat treatments are there?

A: The three types of post-weld heat treatments are stress-relief annealing, normalizing, and tempering.

Q: What kinds of machines are used for post-weld heat treatment?

A: Furnace machines are typically used for post-weld heat treatment. They may be vacuums, boxes, trailers, or trucks. Besides, the domestically PWHT machines used are typically resistance heating machines, heating blankets, or ceramic strip heaters.

Shuimu Induction is one of the leading and professional PWHT heater manufacturers and suppliers in China. In order to offer customers better equipment, we have introduced advanced equipment and technology into our factory. and now supplying you with a discount, we warmly welcome you to buy the cheap PWHT heater made in China with us, and to enjoy our low price and good service.

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