Pipe soldering machines

Copper pipe soldering machines serve pipe joining work in air conditioning installation, refrigeration systems and water pipelines. Soft soldering or brazing technology creates firm joints. The product group includes handheld resistance soldering machines and torches running on propane or acetylene gas. The group also covers accessories such as phosphor copper brazing rods, lead-free solder wire, soldering paste with integrated flux powder, and electrode pairs.

Copper pipe soldering machines meet the need for pipe joining in air conditioning, refrigeration and water pipeline installation. Soft soldering and brazing technology helps create firm, tight joints. Suitable for many different pipe diameters. Modern soldering equipment uses heat from resistance elements or gas. As a result, work speed is fast and stability is high.

This group includes handheld electric soldering machines, gas torches and the following accessories:

• Brazing rods.
• Solder wire.
• Soldering paste.
• Electrode pairs.

Each type of equipment serves a specific range of pipe diameters. The range spans small pipes under 35 mm up to pipes larger than 60 mm. Resistance soldering machines allow precise temperature control, reducing the risk of scorching surrounding material.

Gas torches bring flexibility when working outdoors or where there is no stable power supply. Accompanying accessories include phosphor copper brazing rods, lead-free solder wire and soldering paste with integrated flux powder. These accessories help the joint meet technical standards. Choosing suitable equipment depends on the pipe type and diameter. It also depends on the work location. Requirements for joint strength must be considered as well.

Classification by heat source

The heat source determines the operating method and application range of copper pipe soldering equipment. Resistance soldering machines use electric current to heat an electrode pair, transferring heat directly into the joint. Gas torches burn a mixture of propane or acetylene with oxygen, producing a high-temperature flame. Each heat source brings its own advantages in speed, precision and mobility.

Resistance soldering machines such as 163020 R220 operate at 440 W, reaching temperatures up to 800 °C, serving pipe diameters from 10 mm to 28 mm. The compact, handheld design is convenient for mobile tasks indoors or on sites with mains power. The REMS Contact machine is aimed at speed and stability, with light weight and easy portability. V-shaped electrode pairs such as 164111 R help ensure even contact and efficient heat transfer into the joint. For tight positions, the rod-type electrode pair 164115 R allows access to difficult soldering points.

The acetylene gas torch 161010 R serves pipe diameters under 60 mm and, besides soldering, is also used for warming, heating, burning, melting or thawing. The propane torch 160010 R is equipped with a piezo self-ignition system and a G 3/8 LH gas thread connection, suited to soft soldering of small copper pipes under 35 mm. The propane pressure reducer 152109 adjusts gas pressure, keeping the flame stable when using the torch.

Soldering materials and supporting accessories

Soldering material determines joint quality, durability and the pressure resistance of the pipe system. Brazing rods, solder wire and soldering paste must suit the pipe type, working temperature and safety standards. Lead-free products containing no heavy metals meet health and environmental regulations. Choosing the right material helps reduce working time, limit errors and extend the service life of the joint.

Solder wire 160200 R contains 97% Sn, with a diameter of 3 mm, a weight of 250 g and a melting temperature from 230 °C to 250 °C. This wire is used with electric soldering machines or torches. The wire contains no heavy metals. It suits soft soldering of copper pipes in domestic water systems. Soldering paste 160210 R integrates Sn97Cu3 solder powder, contains no lead and no silver, removing the step of preparing a separate solder rod and saving working time. This paste complies with standards and does not harm the health of the user or the surrounding environment.

Brazing rod 160220 R has a diameter of 2 mm, comes in a 1 kg box and follows the standard ISO 17672-CuP 179; it is used only with torches, not with soft-soldering resistance machines. This rod serves brazing, creating joints that withstand high pressure, suited to refrigeration and air conditioning systems. Fleece pads 160300 R clean copper joints after completion, removing residue, keeping the surface bright and reducing the risk of corrosion over time.

Electrode pairs and electric soldering machine accessories

Electrode pairs transfer heat from the resistance soldering machine into the copper pipe joint. The design of the electrode pair affects access to the soldering position. It also affects heat uniformity. And the speed of completing the joint. Different types of electrode pairs serve specific pipe diameters. They also serve specific joint shapes and working spaces. Changing electrode pairs flexibly lets the solderer handle many different situations with the same machine.

The electrode pair with handle 164110 R is compatible with the REMS Contact 2000 machine, rated 1750 W, reaching up to 900 °C, serving large-diameter copper pipes. The handle design helps the solderer keep a safe distance from the heat source. It also reduces hand fatigue during continuous work. The V-shaped electrode pair 164111 R has a V-shaped groove that hugs the joint, transfers heat evenly and keeps soldering quality consistent. The rod-type electrode pair 164115 R reaches tight points that V-shaped clamps cannot access, useful in complex pipe systems or hidden corner positions.

Equipment protection and storage

Protecting soldering equipment extends service life, reduces maintenance costs and ensures safety during transport. The heating plate in plastic pipe welding machines, or other hot parts, should be covered when not in use. A heat-resistant fabric bag keeps dust, impact and moisture away from sensitive components. Proper storage keeps equipment ready to operate when needed. This reduces downtime between work shifts.

The fabric cover 250143 is compatible with REMS SSG 110, 110/45°, 125 machines, made of heat-resistant fabric, protecting the heating plate from impact and dust. The heating plate plays an important role in the plastic pipe welding process. The plate must be kept clean and intact. This helps maintain even temperature. The fabric cover helps extend the heating plate's service life, reducing replacement frequency and saving operating costs.

Selection by pipe diameter and joint type

Pipe diameter and joint type determine the suitable soldering equipment. Small pipes under 35 mm usually use a propane torch or a low-power electric soldering machine. Pipes from 35 mm to 60 mm need an acetylene torch or a medium-power electric soldering machine. Pipes larger than 60 mm require a high-power electric soldering machine or a specialised torch. Soft-soldered joints withstand low pressure, suiting domestic water systems. Brazed joints withstand high pressure, suiting refrigeration and air conditioning systems.

The 163020 R220 machine serves pipes from 10 mm to 28 mm at 800 °C, suited to indoor soft soldering. The torch 161010 R serves pipes under 60 mm, flexible for outdoor work. Brazing rod 160220 R is used with torches, creating brazed joints that withstand high pressure. Solder wire 160200 R is used with electric machines or torches, suited to soft soldering of copper pipes in water systems.

Safety and technical standards

Safety when soldering copper pipes covers temperature control, ventilation and the use of non-toxic materials. Lead-free soldering materials without heavy metals reduce the risk of poisoning from long-term exposure. The ISO 17672 standard specifies the composition and properties of phosphor copper brazing rods. Electric soldering machines need insulation, overheat protection and automatic shut-off in case of a fault. Torches need a safety valve, a stable pressure reducer and a safe ignition system.

Soldering paste 160210 R contains no lead, complies with standards and does not harm health or the environment. Solder wire 160200 R contains no heavy metals, melts between 230 °C and 250 °C, and suits domestic water systems. Brazing rod 160220 R follows ISO 17672-CuP 179, keeping joint quality consistent. The pressure reducer 152109 adjusts gas pressure, preventing sudden flare-ups and protecting the user.

The copper pipe soldering group offers varied options for pipe system installation. It suits both residential and industrial projects. Selecting suitable equipment, soldering materials and accessories helps ensure joint quality. It also shortens working time. At the same time it supports compliance with safety standards. For detailed advice on technical specifications or usage methods, please get in touch. Our technical team will assist.