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China Hangzhou Suntech Machinery Co., Ltd.
About Us
Hangzhou Suntech Machinery Co., Ltd.
About HZ-SUNTECHHZ-SUNTECH is the Pipe Tools Division of CNSUNTECH Group, specializing in heavy-duty pipe fabrication and installation equipment for global contractors, distributors, and industrial users.With over 20 years of industry experience, we focus on providing durable, jobsite-ready solutions for steel pipe and plastic pipe processing applications.Our product range includes:Pipe Threading MachinesRoll Grooving MachinesPipe Cutting & Beveling MachinesHDPE Butt Fusion Welding MachinesSocke...
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Hangzhou Suntech Machinery Co., Ltd.

Quality Pipe Threading Machine & Roll Grooving Machine factory

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Lastest company news about Still Running Strong After 15 Years
Still Running Strong After 15 Years

2025-11-20

Today we were delighted to hear from one of our customers in Australia.They reached out to purchase spare parts for a pipe threading machine supplied by SUNTECHMACH about 15 years ago. It is truly inspiring to know that the machine is still operating smoothly after more than a decade, proving once again the durability, reliability and long-term value of SUNTECHMACH equipment. We sincerely appreciate the customer’s trust in SUNTECHMACH, and we will continue to provide professional technical support and spare parts service to ensure every SUNTECHMACH machine keeps performing at its best. SUNTECHMACH Quality Control System At SUNTECHMACH, we believe that quality defines the brand. From engineering design to supply chain management, production control, testing, and final inspection, we have established a comprehensive and rigorous quality assurance system to ensure that every machine delivers stable performance, long service life, and high reliability. 1. Strict Supply Chain Control (Incoming Quality Control) 100% inspection of critical components, including motors, gearboxes, bearings, and sealing systems. Stable supplier network, partnering with certified manufacturers (ISO, CE, etc.). Imported sealing parts for hydraulic systems and grooving/bending machines to ensure pressure resistance and durability. 2. In-House Gearbox Assembly and Verification As the gearbox is the most critical part of threading and grooving machines, SUNTECHMACH maintains full control by: Assembling and tuning all gearboxes in-house by our engineering team. Conducting three-stage meshing tests: high speed, low speed, and load simulation. Ensuring gear accuracy, clearance, and noise level meet standards before moving to the next process. This is one of the key reasons SUNTECHMACH machines can operate stably even after 10–15 years of use. 3. Process Quality Control (PQC) A “Three-Check System” is implemented during assembly: First Article Inspection – Supervisor approval required for the first unit at each workstation. Patrol Inspection – QC team conducts checks every two hours on critical points. Final Process Inspection – Full functional testing after assembly is completed. Key inspection items include: Electrical function testing Load running test (with steel pipe simulation) Hydraulic pressure endurance test Noise & vibration test Secondary check of fasteners and overall appearance 4. Comprehensive Performance Testing Before packaging, each SUNTECHMACH machine must undergo 20–40 minutes of real-operation simulation, depending on the machine type: Threading machines: full-size TPI cutting test + automatic feed test Grooving machines: groove depth consistency check Pipe cutters: perpendicularity and cutting accuracy test Butt-fusion welders: heating plate temperature stability test This ensures every unit has passed real-world work conditions before leaving the factory. 5. Final Quality Audit (FQA) The final audit before shipment includes: Recording product serial numbers Verifying full accessory list Packaging vibration resistance check Carton batch record and barcode tracking system All quality data is traceable. 6. Long-Term Durability Assurance The long service life of SUNTECHMACH equipment—some units still running after 15+ years—comes from: High-grade materials Wear-resistant treatment on critical components Robust motor & gearbox structures Advanced heat-treatment processes Long-term spare parts supply system We deliver not just machines, but lasting value. 7. Customer Feedback & Improvement Loop Regular follow-up with overseas clients Customer suggestions integrated into engineering evaluations Continuous product upgrades 24/7 technical support team This system ensures SUNTECHMACH products consistently meet global market requirements.
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Lastest company news about Korean clients to visit our manufacturing site for equipment inspection and quality verification
Korean clients to visit our manufacturing site for equipment inspection and quality verification

2025-11-18

Recently, we had the pleasure of hosting a delegation from a professional steel pipe manufacturing factory in Korea at Hangzhou Suntech Machinery Co., Ltd. The customer specializes in producing a wide range of steel pipes and is planning to expand their in-house grooving capacity to better serve the local market. For this purpose, they are preparing to purchase our roll grooving machine production line to integrate into their factory’s internal pipe-processing workflow. During the visit, our team welcomed the guests to our workshop and offered a comprehensive tour of the production process—from raw material machining to precision assembly and final performance testing. The Korean clients carefully evaluated the overall structure, stability, and efficiency of our roll grooving machines, expressing great interest in how our equipment could support their future production goals. A key part of the visit was the technical discussion between the customer’s engineers and our Suntech engineering team. Together, we analyzed specific application requirements, grooving standards, and the expected pipe specifications for their local market. Through open communication and on-site demonstrations, both sides worked hand in hand to optimize the production line plan and solve technical concerns, ensuring that the final solution would perfectly match their factory’s workflow. The clients conducted a detailed inspection of their ordered equipment—checking grooving precision, gearbox operation, testing results, and overall build quality. They were highly satisfied with the machines’ performance and the strict quality-control system that Suntech applies to every product. Before concluding the visit, the Korean delegation confirmed that Suntech’s roll-grooving production line meets their expectations and will play a key role in enhancing their pipe-processing capability. They also expressed confidence in our continued cooperation and interest in future equipment upgrades. At Suntech Machinery, we believe that professionalism builds trust, and quality drives long-term partnerships. We welcome customers worldwide to visit our factory, communicate directly with our engineers, and experience our commitment to delivering high-quality, durable, and efficient pipe-tool solutions.
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Lastest company news about How to Cut and Bend Rebar: A Complete Guide
How to Cut and Bend Rebar: A Complete Guide

2026-04-22

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Whether for small home projects or large construction sites, mastering the proper techniques for cutting and bending rebar is crucial. This guide provides a detailed introduction to safety procedures, required tools, and professional skills for rebar processing. Safety First Before beginning any rebar work, the following safety measures must be taken: Personal Protective Equipment (PPE) Safety goggles or face shield Sturdy work gloves Steel-toe safety boots Long-sleeve shirt and pants Hearing protection (when using power tools) Workspace Safety Ensure the work area is tidy and free of clutter Good lighting conditions Stable, level workbench Keep away from flammable materials Ensure sufficient operating space Part 1: Cutting Rebar Required Tools Manual Rebar Cutter – Suitable for rebar ≤ 16mm in diameter Angle Grinder with Cutting Disc – Suitable for various diameters, most commonly used Electric Rebar Cutter – Suitable for large batches and larger diameters Hydraulic Rebar Cutter – For professional construction use Measuring and Marking Tools: Tape measure, chalk, square And below is our electric rebar cutter, it has ELECTRIC REBAR CUTTER and CORDLESS REBAR CUTTER Model RC-16 RC-20 NRC-20 RC-22 RC-25 RC-32 Voltage+5% 110V/230VAC only 110V/230VAC only 110V/230VAC only 110V/230VAC only 110V/230VAC only 110V/230VAC only Wattage 850W/900 W 1250W/950W 1350W/950W 1350W/1000W 1700W/1600W 3100W/3000W Net weight 8KGS 13 KGS 12.5 KGS 15 KGS 24.5 KGS 31KGS Gross weight 13 KGS 18.3 KGS 17KGS 21.5 KGS 32 KGS 40KGS Cutting speed 2.5-3.0s 3.0--3.5s 3.0--3.5s 3.5--4.5s 5--5.5s 6--7s Max rebar diameter φ16mm φ20mm φ20mm φ22mm φ25mm φ32mm Min rebar diameter 64mm 64mm 64mm 64mm 64mm 6mm Cutting Steps Manual Cutting (Small Diameter Rebar) Measure and Mark Use a tape measure to accurately determine the required length Mark the cutting point clearly with chalk or a marker Double-check measurements for accuracy Position the Rebar Place the rebar into the cutter’s jaws Ensure the mark aligns with the blade Secure the rebar to prevent slipping Perform the Cut Press the handle smoothly and firmly Complete the cut in one motion; avoid repeated attempts Check that the cut is clean and even Angle Grinder Cutting (Recommended for Most Situations) Preparation Install a dedicated metal-cutting disc Check the angle grinder’s condition; ensure the guard is intact Secure the rebar on a stable platform Safe Cutting Technique Hold the angle grinder firmly with both hands Start the tool and let it reach full speed before touching the rebar Apply steady, moderate pressure; let the disc do the work Avoid excessive force, which can cause the disc to jam or shatter Direct sparks away from people and flammable materials Finish the Cut After cutting through, let the disc spin freely for 2–3 seconds before turning off Remove burrs from the cut using a wire brush Allow the disc and rebar to cool before handling Pro Tips For batch cutting, use a simple jig to ensure consistent lengths Check length tolerance after cutting; generally should not exceed ±5mm Keep cutting discs sharp; dull discs are more dangerous and less efficient For rebar over 25mm in diameter, consider cutting from both sides Part 2: Bending Rebar Required Tools Manual Rebar Bender – Suitable for small diameters and simple bends Electric Rebar Bender – Suitable for large batches and complex shapes Bench-Mounted Bender – For workshop use, high precision Auxiliary Tools: Bending pins, measuring tools, safety gear Pre-Bending Preparation Understand Bending Parameters Minimum bend diameter (typically 4–8 times the rebar diameter) Springback amount (rebar will slightly spring back after bending) Required angles and dimensions per structural drawings Mark Bending Points Measure from one end of the rebar and mark the bend start point For complex shapes, mark all bending points Use different colors to distinguish bend points if needed Bending Techniques Manual Bending (Standard 90° Hook) Place the rebar in the bender, aligning the bend point Secure one end of the rebar and apply steady force to the handle Bend slightly past the desired angle (to account for springback) Check the angle with a protractor or angle finder Complex Shape Bending Multiple Bends: Bend from the middle toward the ends Spiral Shapes: Use a dedicated bending pin; bend slowly and evenly Closed Stirrups: Bend one end first, measure, then bend the other end Bending Quality Standards Angle tolerance within ±5° No cracks at bend points Good flatness, no twisting or deformation Dimensions must match drawing requirements Part 3: Special Techniques and Common Applications Common Rebar Shapes and Processing Stirrups: Used in beams and columns; note the 135° hook Longitudinal Bars: Pay attention to end hooks and lap splice lengths Distribution Bars: Keep straight; note concrete cover requirements Tie Bars: Precisely control bend locations Professional Tips Batch Processing: Create molds or templates to ensure consistency Winter Construction: Bend slowly in cold temperatures to avoid brittleness High-Strength Rebar: May require heating before bending Quality Control: Randomly inspect 10% of each batch for quality Part 4: Safety and Maintenance Tool Maintenance Regularly inspect cutting discs and bending dies for wear Keep tools clean, especially moving parts Periodically check cables and insulation on power tools Apply anti-rust oil before storage, especially on working surfaces Emergency Response Minor cuts: Clean the wound and apply pressure to stop bleeding Foreign object in eye: Do not rub; flush with an eyewash station Serious injury: Stop bleeding immediately and call emergency services Fire: Cut power and use an appropriate fire extinguisher Conclusion Mastering rebar cutting and bending requires both theoretical knowledge and practical experience. Always prioritize safety by using proper tools and personal protective equipment. Start by practicing on simple projects to gradually build your skills. Remember, precise rebar work is fundamental to quality concrete structures, directly impacting the safety and service life of a building.
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Latest company case about HT8002 75mm Aluminum portable hand tool tube cutter PPR plastic pipe cutter
HT8002 75mm Aluminum portable hand tool tube cutter PPR plastic pipe cutter

2023-09-30

HT8002 63mm Aluminum portable hand tool tube cutter PPR plastic pipe cutterPlastic pipe cutter description: Scissors are not surprising, but they are versatile. When tools such as knives and shovel do not work well, shears can be easily solved. Scissors have become an indispensable tool in people's daily production and life.Generally, the material of the knife body is made of aluminum alloy, which makes it light and handy. The blade is 65MN, stainless iron, SK5, etc. The hardness is between 48-58 degrees. The blade is quenched at high temperature. Generally, hand tools are consumables between 1 and 3years. Features: Using SK5/65Mn blade, sharp cutting1) High hardness2) Tough3) Self-locking ratchet design, it will not bounce when cutting, safer4) The safety lock at the rear of the handle prevents accidental injury5) Replaceable blade6) Handle curve design, comfortable grip7) Surface spray color can be customized8) There is a large amount of inventory, support express delivery9) Support OEM brand customization10) 75mm labor-saving cutter, SK5 steel blade, Teflon anti-rust and anti-corrosion coating11) Self-locking ratchet, cutting more labor-saving Item: HT8002 Max Cutting Dia: 75mm plastic pipe Blade: 65 Mn Thickness of Blade: 2.0mm Structure: Aluminium Alloy Net weigt/Set: 117g Package: Blister Card Meas: 61*38*35cm Details: There are currently two types of PPR pipe fittings, one is power shear and the other is quick shear. The yellow one in the picture above is the power-assisted shear, which is characterized by the ease of cutting the tube, but the efficiency deviates. The black one is a quick cut, which is characterized by a faster cut, but requires greater hand strength. As for which kind of scissors is better, it depends on which one is more suitable for you. But no matter what kind of scissors, the key lies in the quality of the scissors blade. A good blade can cut more easily and last longer. Advantages: 1).pipe cutter with special heat treatment for each of our blade we make, gives our blade the perfect hardness for longer usage. 2).Our special girding on our blades makes more shaper (no burrs) and durable. Equally alignment on each of blade makes the straight cut on the pipes. 3).We polish each of our blades carefully to eliminate the liners on the blade surface, which makes the blade more smooth and durable. 4).Strict quality control: we test our blades with latest hi-tech equipment to make sure the hardness of the blade meet our standard.
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Latest company case about SUNTECHMACH to Showcase Core Pipe Machinery Lineup at the 138th Canton Fair
SUNTECHMACH to Showcase Core Pipe Machinery Lineup at the 138th Canton Fair

2025-11-20

SUNTECHMACH is pleased to announce its participation in the 138th China Import and Export Fair (Canton Fair), where the company will present a selection of its most representative and high-performance pipe machinery and tools. At this exhibition, SUNTECHMACH will display: Classical Long-Life 2" Pipe Threading MachineA proven model known for its durability and stable performance over many years. New 1" Pipe Threading MachineA compact and efficient solution designed for light-duty threading applications. Manual 3/8" GrooverIdeal for small-diameter pipe grooving with easy and precise manual operation. Manual Steel Pipe CutterA robust and user-friendly tool designed for clean and accurate pipe cutting. High-Pressure Test PumpBuilt to ensure reliable pressure testing for plumbing, fire systems, and industrial pipelines. PPR Socket Welding MachineA practical and essential tool for PPR pipe installation and plastic pipeline projects. SUNTECHMACH’s participation in this year’s Canton Fair underscores the company’s commitment to delivering long-lasting, reliable, and cost-effective pipe machinery to global customers. With over 20 years of manufacturing experience, the brand continues to expand its product offering and technical support capabilities worldwide. “If visitors would like to see other products from our assortment, we welcome them to contact us in advance,” the company stated. “We will be pleased to arrange additional models or prepare customized solutions during the exhibition.” SUNTECHMACH looks forward to meeting industry partners, distributors, and end-users from around the world at the Canton Fair, strengthening cooperation and presenting the company’s latest innovations in pipe machinery technology.
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Latest company case about When you open a new hole drilling machine
When you open a new hole drilling machine

2025-01-09

Table of Contents I.Major purposes and application scope··························2 II.Technological Parameters····································2 III.Precautions··················································2 IV.Driving System···············································2 V.Electric System···············································3 VI.Operation and Adjustment····································3 VII. Maintenance··················································4   I.Major purposes and application scope This machine is applicable for tapping of various seamless steel tubing, galvanized pipes, plastic-lining pipes etc, to facilitate the mounting of pipes. It’s an ideal tool for construction industry and pipeline construction sectors.   II.Technological Parameters Max. diameter of hole to be tapped ……………………………………114mm Max. wall thickness of hole to be tapped………………………………10mm RPM of spindle (work coupling with 1400 rpm reduction motor…120rpm Electric motor …………………………………………...…………………700 W Overall dimensions ( WxDxH) …………….…340mm✕340mm✕620mm Net weight……………………………………………………………..….…21kgs   III.Precautions You are required to read this manual in detail to familiar yourself with functions of machine. Earthing and fuse are required in the circuit. Never run the machine overload.   IV.Driving System In this machine, the tapping saw is directly driven by a reduction motor, resulting in a reduced loss of mechanic power. The feeding movement is realized by manual rack and pinion system.   V.Electric SystemThe Electric System of this Machine consists of an electric motor, a switch and cables. The stop/start of the machine is controlled by the switch. An electric motor is the only load. The power supply shall agree with the requirements of motor: three phase, 380 V, 50 Hz. Sound earthing of ground wire (black) is required prior to starting the machine.   VI.Operation and Adjustment Put the machine on the steel tubing to be tapped and let the V-shaped surface at the bottom touch the tubing (Refer to Fig. 1). Let the machine run idle to check whether it’s normal (Observe the rotating direction).Turn the feed lever slowly. First tap a location hole with center bit. Then tap the hole to its size. Add coolant to the saw during operation to extend its service life significantly. VII. Maintenance Be gentle in operation. After operation, apply anti-rusty oil to the surface of slide after cleaning it. Add lubrication grease to all the joints of moving units. Never operate the machine overload.
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Latest company case about Working principle of motors
Working principle of motors

2025-01-15

How does the motor work? The working principle of the motor is based on the law of electromagnetic induction and the law of electromagnetic force, which mainly converts electrical energy into mechanical energy. There are two basic forms of motors: generators and motors. Generators convert mechanical energy into electrical energy, while motors convert electrical energy into mechanical energy. Working principle of motors The motor generates a rotating magnetic field through the energized coil (stator winding), which acts on the rotor (such as a squirrel cage closed aluminum frame) to form a magnetic electrodynamic rotation torque. Motors are divided into DC motors and AC motors according to the power supply used. Most motors in power systems are AC motors, which can be synchronous motors or asynchronous motors (the speed of the motor stator magnetic field does not keep the same speed as the rotor rotation speed). The motor is mainly composed of a stator and a rotor. The direction of the force movement of the energized wire in the magnetic field is related to the direction of the current and the direction of the magnetic flux line. Its working principle is that the magnetic field acts on the force of the current to make the motor rotate. Principle of generator The generator absorbs mechanical power through the mechanical system and converts it into electrical energy. The operating principle of the generator is opposite to that of the motor. It drives the rotor inside the generator to rotate through mechanical energy, and then generates current in the stator to realize the conversion of mechanical energy into electrical energy. Basic structure of the motor The basic structure of the motor includes the stator and the rotor. The stator is the component that establishes the excitation magnetic field, and the rotor is the induced component that induces electromotive force and flows the working current. There is an air gap between the stator and the rotor to allow the rotor to rotate. The electromagnetic torque is generated by the interaction between the excitation magnetic field in the air gap and the magnetic field established by the current in the induced component.   For more information pls click www.hz-suntech.com  
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Hangzhou Suntech Machinery Co., Ltd.
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WHAT CUSTOMERS SAYS
Korean customer
Your pipe cutter looks good
Australia customer
Very happy with the product, exactly what was advertised
Vietnam customer
Great stuff, thanks for your quick service.
The Middle East customer
I want 4000 welding machine
CONTACT US AT ANY TIME!