ID HQ SERIES COIL [9553NB] [4.5"] ANGLE GRINDER SPARE PART - 30126
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Restore Full Power — The Right Coil Makes All the Difference
The ID HQ Series Coil (Part No. 30126) is a precision-engineered angle grinder spare part designed as a direct replacement for the 9553NB 4.5" angle grinder. Built with high-grade copper wire windings, advanced electromagnetic insulation, and a robust magnetic core, this replacement coil restores full motor function by efficiently converting electrical energy into mechanical energy, ensuring your power tool runs at peak performance.
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- Exact OEM Compatibility (9553NB / 4.5" Angle Grinder): This coil is specifically designed as a spare part for the ID HQ Series 9553NB 4.5" angle grinder, ensuring a correct fit without modification. Installing an incompatible coil can damage the motor housing or create electrical inefficiencies — this part eliminates that risk entirely.
- Precision Copper Wire Windings for Efficient Energy Transfer: The coil features tightly wound high-conductivity copper wire that minimises electrical resistance and maximises the conversion of electrical energy into the rotational mechanical energy required to drive the grinder disc. This translates to consistent RPM output and stable tool performance even under load.
- Advanced Electromagnetic Insulation for High-Temperature Operation: The insulation material surrounding the copper windings is engineered to tolerate the elevated temperatures typical of angle grinder operation. This prevents insulation breakdown, short circuits, and premature coil failure — extending the lifespan of the repaired tool significantly.
- Robust Magnetic Core for Stable Field Generation: The laminated magnetic core at the centre of the coil structure reduces eddy current losses and maintains a consistent electromagnetic field. This ensures the motor delivers reliable torque and does not suffer from irregular power delivery or overheating caused by core inefficiency.
- Genuine ID HQ Series Part (Part No. 30126) for Assured Quality: As an authentic ID HQ Series spare part carrying part number 30126, this coil is manufactured under the same quality controls as the original component. The part is supplied with the coil unit ready for installation, and is backed by the ID brand's commitment to durable, professional-grade power tool components.
This replacement coil meets the original equipment specifications for the 9553NB angle grinder and is supplied as a complete coil unit (Part No. 30126) ready for installation by a qualified technician.
General Purchase & Comparison Queries
Is this coil compatible with my angle grinder?
This coil (Part No. 30126) is specifically designed for the ID HQ Series 9553NB 4.5" angle grinder. If your grinder model matches the 9553NB, this is a direct drop-in replacement. If you are unsure of your model number, check the label on the body of your angle grinder before purchasing.
Is this a genuine ID spare part or an aftermarket alternative?
This is a genuine ID HQ Series spare part manufactured to the same specifications as the original component. It carries the official part number 30126 and is produced under ID's quality controls, ensuring it meets the performance and durability standards of the original motor coil.
How does this coil compare to a generic replacement?
Generic coils may not match the exact winding specifications, insulation rating, or magnetic core dimensions of the original part, which can lead to reduced performance, overheating, or premature failure. The ID HQ Series coil (30126) is built to the original design tolerances, making it a far more reliable long-term repair solution for your 9553NB angle grinder.
Product-Specific and Usage Queries
What does the coil do in an angle grinder?
The coil (also known as a field coil or stator coil) is a core component of the angle grinder's electric motor. It generates the electromagnetic field that causes the rotor (armature) to spin, which ultimately drives the grinding or cutting disc. Without a functioning coil, the motor cannot produce the rotational force needed for operation.
Can I install this coil myself, or do I need a technician?
Replacing the coil in an angle grinder involves working with the internal motor assembly and requires a basic understanding of power tool repair. While experienced users with the right tools may be able to perform the replacement, we strongly recommend having the installation carried out by a qualified service technician to ensure correct fitting, electrical safety, and preservation of your tool's performance warranty.
What are the signs that the coil on my 9553NB needs replacing?
Common symptoms of a failing coil include the grinder not starting, significant loss of power under normal load, excessive heat emanating from the motor body, a burning smell during use, or visible scorch marks on the motor windings. If you observe any of these signs, inspect the coil and replace it with the ID Part No. 30126 to restore safe and full operation.
Problem/Solution-Oriented Queries
My angle grinder turns on but has very little power — could the coil be the issue?
Yes, a partially failed or degraded coil is a common cause of reduced power output in angle grinders. When the copper windings develop breaks or the insulation degrades, the electromagnetic field weakens, resulting in lower RPM and poor torque delivery. Replacing the coil with ID Part No. 30126 — which features high-grade copper windings and robust insulation — is an effective solution to restore full power.
The motor gets very hot quickly — will a new coil fix this?
Excessive motor heat can result from a coil with damaged insulation causing short circuits within the windings, which increases current draw and generates excess heat. The ID HQ Series replacement coil (30126) is built with high-temperature resistant insulation designed to operate safely within the normal thermal range of the 9553NB grinder. Replacing a thermally compromised coil with this genuine part will restore correct thermal behaviour, provided no other motor components are damaged.
My grinder stopped working after a power surge — is the coil likely damaged?
Power surges can cause insulation breakdown or winding damage in the motor coil, leaving the grinder non-functional. This is one of the most common causes of coil failure in power tools. If the tool does not respond after a surge and other components (such as the switch and carbon brushes) have been checked, the coil is a prime suspect. The ID HQ Series coil, Part No. 30126, is a reliable replacement to bring your 9553NB angle grinder back into full working order.