Engineering Construction Pipeline Connection Solutions

Cordless Grinding for Engineering Construction Pipeline Connection Solutions

Hangzhou Xinabo Intelligent Electromechanical Technology Co., Ltd manufactures intelligent threading machines, pipe tightening machines, cold saws and cordless power tools for engineering construction pipeline connection solutions. Our Brushless Angle Grinder manufacturer range covers the cutting, grinding, deburring and surface preparation work that surrounds threading and joint assembly on fire protection, municipal and industrial piping projects.

Both models run on the 21V lithium-ion platform shared across our cordless range, so one battery system covers grinding, drilling, punching and cutting on the same site. Brushless motors take carbon brushes out of the maintenance schedule and hold speed under load — useful when a grinder works continuously on pipe supports, hangers, brackets and weld preparation.

Our Brushless Angle Grinder Range

XJ.908 — 100 mm general-purpose grinder

• High-magnetic brushless motor delivering 30% higher grinding efficiency and 20% lower energy consumption than standard grinders.
• Stepless 0–6700 rpm adjustment so one tool covers cutting, grinding and polishing discs.
• Safety switch and anti-lock device reduce speed when resistance is detected, limiting kickback.
• Built-in overheat and overload protection for continuous site use.

XJ.918 — 125 mm heavy-duty grinder

• Upgraded high-magnetic brushless motor with a 125 mm disc and 30 mm maximum cutting depth.
• Three adjustable speed settings matched to different material processing needs.
• Vibration-damping anti-slip body and anti-kickback safety device for high-intensity work.
• Intelligent control system with fourfold safety protection.

Where Cordless Grinding Fits on a Piping Project

On a threaded or mechanically coupled pipeline, grinding is rarely the headline operation — but it decides whether the next step runs cleanly. Cordless grinders reach work positions that a corded tool cannot, and they remove the trailing lead that slows crews on scaffolds, risers and plant rooms.

• Trimming pipe supports, hangers, brackets and threaded rod to length.
• Deburring and chamfering cut pipe ends before threading or grooving.
• Dressing welds and removing scale, rust or old coating before joint assembly and painting.
• Light demolition and adjustment work during retrofit and shutdown windows.

The grinders sit alongside the rest of our Cordless Power Tools platform, which also covers circular saws, chainsaws, hydraulic cutters, rotary hammers, wrenches, hole punchers and spray guns, plus a backpack lithium battery pack for longer shifts away from a charging point.

Workpiece Materials and Disc Matching

Our brushless grinders are built for metal, steel, stainless steel and comparable industrial materials. Disc choice follows the workpiece rather than the tool, and it is the single decision that most affects cut quality and consumable life.

• Carbon and mild steel: bonded cut-off wheels for pipe and section, grinding wheels for weld dressing.
• Stainless steel: iron-free, sulphur- and chlorine-free discs to avoid surface contamination and later corrosion.
• Galvanised and coated surfaces: cutting discs for section work, flap discs for preparing edges before coating repair.
• Aluminium and non-ferrous: discs rated for the material, with lower spindle speeds where the disc manufacturer requires it.

Motor, Battery and Control Platform

The 21V lithium-ion platform is shared across our cordless tools, so batteries and chargers are interchangeable between the grinder, drill, wrench, puncher and saw on the same project. That reduces the number of battery types a site has to stock and charge.

• High-magnetic brushless motor: no carbon brush replacement, stable speed under load, lower energy draw.
• Stepless speed control on the XJ.908 for polishing and finishing; three fixed settings on the XJ.918 for repeatable heavy work.
• Overheat and overload protection that cuts output before the motor is damaged.
• Backpack lithium battery pack available for extended runtime where no mains supply is nearby.

Safety Systems and Operator Protection

Kickback and thermal overload are the two failure modes that end a grinding job early. Both models address them in the tool itself, and the remaining controls sit with the operator and the site procedure.

• Anti-lock and anti-kickback devices reduce speed when resistance is detected in the cut.
• Vibration-damping anti-slip body on the XJ.918 for better control during long grinding passes.
• Guard, side handle and flange set fitted as standard; disc rated speed must always meet or exceed tool speed.
• Eye and face protection, hearing protection and cut-resistant gloves are required for all cutting and grinding operations.

Quality Control, Certification and Acceptance

Hangzhou Xinabo has held National High-tech Enterprise status since 2023 and works from a 10,000 m² facility in Xiaoshan, Hangzhou. Our development history includes nine generations of intelligent threading machines over more than a decade of research, and more than 30 patents covering pipe connection equipment, clamps, cutterheads and control devices.

• Product certification documentation includes an Attestation of Conformity referencing the Machinery Directive and the Electromagnetic Compatibility Directive.
• Incoming material control, controlled assembly and function testing before packing.
• Each unit is checked for speed control response, switch function, guard fitment and protection circuit behaviour before dispatch.
• Technical support and operator training on our machinery are available through our team.

Information We Use to Configure Your Solution

A grinder specification only becomes useful when it is tied to the work it will do. We build the proposal from the working point, the material and the production target rather than from a catalogue number alone.

Maintenance, Spare Parts and Documentation

A brushless motor removes the routine brush change that dominates maintenance on conventional grinders. What remains is straightforward and can be handled by the crew that uses the tool.

• Keep air vents and motor housing clear of metal dust; check after every grinding shift.
• Inspect guard, flange, spindle lock and power switch at each disc change.
• Store batteries at moderate temperature and charge on the supplied charger only.
• Spare parts support is available across our product range, with consumables and wear items supplied alongside the tool.

Machines ship with the operating documentation needed for site acceptance, and our technical team supports commissioning questions, operator familiarisation and accessory selection for the specific pipe materials on the project.

Frequently Asked Questions

What is the difference between the XJ.908 and the XJ.918?

The XJ.908 100 mm brushless angle grinder is the general-purpose unit with stepless 0–6700 rpm control for cutting, grinding and polishing. The XJ.918 125 mm heavy-duty grinder adds a larger disc, 30 mm maximum cutting depth, three speed settings and a vibration-damping body for high-intensity fabrication.

Do the grinders share batteries with other Xinabo cordless tools?

Yes. Both grinders run on the 21V lithium-ion platform used across our cordless range, so batteries and chargers are interchangeable with our circular saw, chainsaw, hydraulic cutter, rotary hammer, wrench, hole puncher and spray gun. A backpack lithium battery pack is available where crews need longer runtime away from a charging point.

Which materials can be cut and ground?

The tools are designed for metal, steel, stainless steel and comparable industrial materials. Disc selection is matched to the workpiece: bonded cut-off wheels for carbon steel pipe and section, iron-free discs for stainless steel to prevent contamination, and flap discs for edge preparation on galvanised or coated surfaces.

How is kickback and overheating controlled?

The XJ.908 uses a safety switch and anti-lock device that reduce speed when resistance is detected, plus built-in overheat and overload protection. The XJ.918 adds an anti-kickback safety device, an intelligent control system and fourfold safety protection. Correct disc rating, guard fitment and operator technique remain part of the safe working method.

What information do you need to prepare a quotation?

Send the workpiece material and thickness, the operation mix, expected duty cycle, access conditions at the work face, battery and charging arrangements, quantity, packaging requirements and destination. Where the grinder supports a threading or tightening operation, include the thread standard and pipe diameter range so we can align the full tool set.

What ships with the machine and what support is available?

Each unit ships with its guard, side handle and flange set, together with the operating documentation required for site acceptance. Spare parts and wear items are supplied across our range, and our technical team supports commissioning questions, operator familiarisation and accessory selection for the pipe materials on your project.