Steel Bar/Rebar Flash Butt Welder
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Product Highlights
- Versatile Welding Applications: Suitable for dinnerware, rims, metal wires, steel strips, tubes, and door/window frames.
- Multiple Power Models Available: Models range from UN-50 (50KVA) to UN-300 (300KVA) to meet diverse industrial needs.
- High Current Capacity: Max short current ranges from 19000A to 52000A depending on the model selected.
- Efficient Cooling System: Integrated cooling water requirement from 150L/H to 600L/H ensures stable operation.
- Robust Clamping Force: Max clamping force up to 12000N provides secure workpiece holding during welding.
- CE Certified Equipment: Product meets CE safety and quality standards for international markets.
- OEM and ODM Services: Customization services available for branding and specific design requirements.
- Fast Lead Time: Peak and off-peak season lead times are both within 15 working days.
Product Attributes
- Customization
- Available
- Type
- Butt Welders
- Current
- Inverter Current
- Model NO.
- UN
- Model
- Un Series
- Application
- Industry
- Transport Package
- Angle Iron Frame and Human Made Wooden Sheet Box
- Specification
- CCC, ISO, UL, CE
- Trademark
- DuroWelder
- Origin
- Guangzhou China
- Production Capacity
- 50sets Per Year
Product Images of Steel Bar/Rebar Flash Butt Welder
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Product Description


Typical Applications:
1.All kinds of dinnerware, cooking knives and table knives;
2.Bicycle rim, motorbike rim, car rim, or similar strip rings;
3.Various metal wire and steel strip, construction steel bar and rebar;
4.Round,Square and Rectangular tubes welding into "L" or "T" shape;
5.Mitre welding of door and window frames.

The Main Principle of Flash Butt Welding:
1.The flash butt process starts when the two workpieces to be welded which are clamped by welding jams still not meet each other.
2.During the subsequence,move the welding jaws together slowly,the welding current density will increase,then the metal material in the gap between the jaws becomes molten,at the same time a shower of sparks also being emitted.
3.As the cross-sectional area in the welding becomes extremely hot,the motion is accelerated.
4.The flashing also makes the surfaces to welded together totally.
5.Finally the upset occurs at high pressure,the welding current is cut off.
Main Technical Parameter:
| Parameter | Rated Power | Rated Voltage | Rated Frequency | Max Short Current | Rated Duty Cycle | Max Clamping Force | Max Upsetting Force | Cooling Water Required | Average Weight |
Over Dimensions L*W*H |
| Model No. | ||||||||||
| UN-50 | 50KVA | 380V/420V | 50/60Hz | 19000A | 50% | 4000N | 2000N | 150L/H | 350Kg | 100*90*150CM |
| UN-75 | 75KVA | 380V/420V | 50/60Hz | 24000A | 50% | 6500N | 3000N | 150L/H | 450Kg | 100*90*150CM |
| UN-100 | 100KVA | 380V/420V | 50/60Hz | 28000A | 50% | 6500N | 3000N | 150L/H | 550Kg | 100*90*150CM |
| UN-150 | 150KVA | 380V/420V | 50/60Hz | 32000A | 50% | 8500N | 4000N | 300L/H | 1200Kg | 140*100*170CM |
| UN-200 | 200KVA | 380V/420V | 50/60Hz | 37000A | 50% | 8500N | 4000N | 300L/H | 1400Kg | 140*100*170CM |
| UN-250 | 250KVA | 380V/420V | 50/60Hz | 45000A | 50% | 12000N | 6000N | 600L/H | 1600Kg | 180*120*190CM |
| UN-300 | 300KVA | 380V/420V | 50/60Hz | 52000A | 50% | 12000N | 6000N | 600L/H | 1800Kg | 180*120*190CM |





About the Supplier
This supplier has been audited by BV. Verify the report on the official BV website with ID "MIC-ASR261550". Items marked "" are certified.
Company Profile
GUANGZHOU DUROWELDER LIMITED is founded by USA and European advanced technology and serves as its Manufacturing Plant in order to bring latest achievements in machinery science and technology to the biggest market of Welding Equipment and Induction Heating Machine, Wire and Tube Processing Machine in the world - China with a goal to support a demand for high quality equipment in the region and beyond. Sinodly Group in China now includes China Sinodly Electric Limited, Guangzhou Sinodly Manuafacturing Limited, Guangdong DuroPower Industries Ltd, Guangzhou DuroWelder Limited, Hainan DLY Limited, DW (Foshan) Electronic Limited, Foshan MRD Technology Limited, and some other enterprises Quality oriented design is produced by US or European trained technicians using state of the art facility all over China. Our engineers make sure that all components are designed to the highest quality standards and tested in 3D models prior to release for manufacturing. It eliminates possible mistakes in design, cut the cost and allows us to produce price competitive various machines with very short lead time. Our Company is a certified ISO9001: 2000 facility and holds various quality and safety Certificates, such as National Mandatory Safety System certificate of CCC, European CE and others. Long list of customers includes such well known companies as Dow Chemical, USA; Eastern Manufacturing, USA; Electric-NPO, Russia; Eupa Co., Taiwan; General Motors North American and European Operations; Honeywell, USA; Harley Davidson Motor Co., USA; Lloyd Industries, USA; Phar, Mexico; Premium Aviation, USA; , Midea and Green Ltd, China. All kinds of machines manufactured in our facility are exported to many countries in the world, such as USA, Mexico, Japan, UK, Italy, Germany, South Asia, Middle East countries, and so on. Diversity of machines and Equipment manufactured by Sinodly Group with sales and technical support from USA and European MACHINERY TECHNOLOGIES, allows us to satisfy demand for dependable and cost effective quality.
About Our Factory & Business Background
-
Business Type
- Manufacturer/Factory & Trading Company
- Address
- Baidou Industrial Zone, Xintang Yaotian Street, Guangzhou, Guangdong, China
-
Plant Area
- 10842.36 square meters
-
Number of Employees
- 62
-
Registered Capital
- 500,000 RMB
-
Terms of Payment
- T/T
-
International Commercial Terms(Incoterms)
- EXW, CFR, CIF, FOB
-
Average Lead Time
-
Peak Season Lead Time: one month
Off Season Lead Time: one month -
Nearest Port
- Shenzhen Port, Guangzhou Port
-
Minimum Order Quantity
- 1 PCS
-
Supply Chain Partners
- 35
Our Production Capability & Technical Expertise
-
Main Products
- Resistance Welding Equipment, Wire Processing Equipment, Pipe Processing Equipment, Bandsaw Blade Processing Equipment, Induction Heater, Automotive Repair Tool
-
Production Lines
- 3
-
Production Machines
- Automatic Sawing Facility, Bending Facility, Wire-electrode Cutting Facility, Grinding Facility, Laser Cutting Facility, Milling Facility, Shearing Facility, Turning Facility
-
QA/QC inspectors
- 4 people
-
Inspection Type for Finished Products
- 100% inspection(Function inspection & Visual inspection)
-
Inspection Method for Finished Products
- Have instructions and uniformly followed
-
Customization Options
- Customization from Samples, Customization from Designs, Full Customization, Minor Customization, Flexible customization
-
ODM Service Available
- Yes
-
OEM Service Available
- Yes
-
R&D Engineers
- 6 people
-
Traceability of Raw Materials
- Yes
Our Industry Experience & Global Business Record
-
Year of Establishment
- 2009-10-16
-
Export Year
- 16 years
-
Main Markets
- North America, Europe, Southeast Asia/ Mideast, East Asia(Japan/ South Korea)
-
Repeat Buyers Choice
- 30%~50%
-
Number of Foreign Trading Staff
- 5
-
Overseas Agent/Branch
- No
-
New Products Launched in Last year
- Yes
Our Certifications, Standards & Industry Recognition
-
Cooperated with Fortune 500
- No
FAQ
- What types of materials can this welder process?
- It handles dinnerware, cooking knives, bicycle and car rims, metal wires, steel strips, construction bars, and various tubes.
- What is the maximum short current for the UN-300 model?
- The UN-300 model supports a maximum short current of 52000A.
- Does the machine require cooling water?
- Yes, the machine requires cooling water, ranging from 150L/H for smaller models to 600L/H for larger ones.
- What is the warranty period for this equipment?
- The product description does not specify a warranty period; please contact the manufacturer for details.
- What payment methods are accepted?
- Accepted payment terms include LC, T/T, PayPal, and Western Union.
- Can I request custom branding or design modifications?
- Yes, both OEM and ODM services are available for this product.
- What is the average weight of the UN-150 model?
- The average weight of the UN-150 model is 1200Kg.
- Where is the nearest shipping port?
- The nearest port for shipping is Shenzhen Port.
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Product Groups
- Induction Heating Machine
- Butt Welding Machine
- Spot & Projection Welding Machine
- microspot welder
- Tube Straightening Cutting Processing Bending Machine
- Copper Tube and Al Tube Butt Welder
- Metal Wire and Metal Strip Bending Forming Cutting Machine
- Band saw related machines
- Water Chiller
- Magnetic Induction Heater
- Resistance Rolling Seam Welding Machine
- Sink Producing Line
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