Draper Expert Liquid Cooled Induction Heater, 3.5kW

The Draper Expert IHT-30 Liquid Cooled Induction Heater is the most powerful and most technically sophisticated product in Draper's professional induction heating range — a 3.5kW industrial-grade induction heating system designed for the most demanding continuous-duty applications in professional workshops, engineering facilities, and industrial environments where controlled, safe, and efficient heating of ferrous and selected non-ferrous metals is a daily operational requirement.

Where the IHT-11 and IHT-15 serve the automotive workshop sector with portable, coil-based induction heating at 1.25kW and 1.75kW respectively, the IHT-30 occupies an entirely different tier of capability. With 3kW of output power on a 16A supply, liquid cooling for continuous industrial use, computer-controlled operation with three fully adjustable heating modes, universal remote control software integration, and a precise focusing tip for accurate targeted work, the IHT-30 is not simply a more powerful version of a workshop induction heater — it is a comprehensive industrial heating system that directly replaces the capabilities of oxy-acetylene gas heating equipment with a safer, more controllable, and more economical electrical alternative.

For industrial workshops and engineering facilities where oxy-acetylene has historically been the only tool capable of delivering sufficient heat for the most demanding applications, the IHT-30 represents a transformative upgrade — eliminating the fire risk, gas handling requirements, regulatory compliance burden, and operator skill dependency of gas-based heating in a single investment.

3.5kW Input Power, 3kW Output — Industrial Heating Capability

The IHT-30's 3.5kW input power and 3kW output power on a 16A supply places it in an entirely different performance category from the lighter IHT-11 and IHT-15 models. This level of power output enables the IHT-30 to heat large cross-section ferrous components — thick-walled steel tubes, heavy flanges, large diameter shafts, substantial castings, and other high-thermal-mass components — to working temperature rapidly and consistently, sustaining that temperature throughout extended heating operations without power-related limitations.

The operating frequency range of 20–60kHz is a key technical specification that speaks directly to the IHT-30's versatility. Lower frequencies within this range drive deeper electromagnetic penetration into the target material, making them appropriate for heating larger, thicker components where surface-level heating alone is insufficient. Higher frequencies concentrate energy closer to the surface — ideal for precision surface heating, hardening applications, and work on thinner materials. The IHT-30's computer-controlled system manages this frequency relationship automatically across its three heating modes, ensuring optimal heat delivery for each specific application without requiring the operator to manually calculate or adjust frequency settings.

Liquid Cooling — The Key to Continuous Industrial Use

The single most significant engineering feature that differentiates the IHT-30 from the lighter models in the Draper induction heating range is its liquid cooling system, incorporating a 1.5 litre liquid cooling tank. This is not a convenience feature — it is the fundamental enabler of the IHT-30's industrial positioning.

Air-cooled induction heating tools — like the fan-cooled IHT-11 and IHT-15 — manage their thermal load adequately for the duty cycles typical of automotive workshop use, where heating tasks are relatively short in duration and are interspersed with other workshop activities that allow the tool to recover between uses. In industrial environments, however, the demand profile is very different. Production processes, manufacturing operations, and intensive engineering work may require sustained or near-continuous induction heating over extended periods — duty cycles that would exceed the thermal management capability of an air-cooled system and force repeated cooling pauses that interrupt workflow and reduce productivity.

The IHT-30's liquid cooling circuit — circulating coolant through the tool's internal heat-generating components and dissipating that heat through the quiet internal fan-assisted radiators — handles this sustained thermal load without restriction, allowing the IHT-30 to operate continuously throughout the working day without enforced cooling periods. For industrial operations where uptime and throughput are critical, this continuous-duty capability is not a specification detail — it is a fundamental operational requirement that the IHT-30 meets and the lighter models in the range cannot.

The quiet cooling fan-assisted radiators deserve specific mention. Industrial environments are already demanding acoustic environments, and noisy cooling systems add to operator fatigue and communication difficulty. Draper's attention to keeping the IHT-30's cooling noise level low reflects an understanding of real industrial working conditions.

Computer-Controlled Operation — Three Fully Adjustable Heating Modes

The IHT-30's computer-controlled operation and three fully adjustable heating modes elevate it well beyond the straightforward on/off operation of simpler induction heating tools into the realm of precision process control. Rather than applying maximum available heat to every job — an approach that risks overheating sensitive components, distorting precision parts, or producing inconsistent results — the IHT-30 allows the operator to define and control the heating process with a degree of precision that gas-based methods fundamentally cannot achieve.

The three heating modes provide distinct operational profiles suited to different application requirements — whether that involves rapid maximum-power heating for breaking the most tenacious corrosion bonds, controlled progressive heating for applications where thermal shock must be avoided, or precision sustained-temperature heating for processes requiring consistent thermal conditions over time. The computer-controlled system manages power delivery, frequency, and duration within each mode, ensuring repeatable and consistent results regardless of operator experience level.

The multi-function display provides clear real-time operational information — mode selection, power output, temperature data, and system status — giving the operator complete situational awareness of the heating process at all times and enabling informed adjustments as the work progresses.

Precise Focusing Tip — Accuracy for Detailed Work

The inclusion of a precise focusing tip with the IHT-30 addresses one of the most demanding requirements in industrial induction heating — the need for accurate, targeted heat application in complex component assemblies where adjacent materials must be protected. The focusing tip concentrates the electromagnetic field into a defined, small-area working zone, enabling the operator to direct heat with a degree of spatial precision that is simply not achievable with standard coil configurations.

This precision capability is particularly valuable in applications involving complex assemblies with mixed materials, precision engineering components with tight manufacturing tolerances, components located in close proximity to heat-sensitive adjacent parts, and any situation where the consequences of heat spread beyond the target zone — distortion, material damage, or component failure — are unacceptable.

Universal Remote Control Software Integration

The IHT-30's ability to link via universal remote control software with external digital or analogue systems represents a capability that places it firmly in the context of modern industrial process control environments. For production facilities and engineering operations where heating processes need to be integrated into automated or semi-automated workflows — triggered by process control systems, monitored by SCADA or data acquisition systems, or coordinated with other equipment in a production line — the IHT-30's software integration capability enables this without the need for custom hardware interfaces.

The ability to control and monitor the IHT-30 remotely, and to integrate its operation with wider facility management and process control systems, transforms it from a standalone workshop tool into a component of a managed industrial process — a level of integration capability that no gas-based heating system can approach.

Replacing Oxy-Acetylene — The Industrial Case

The IHT-30's product description positions it explicitly as a replacement for oxy-acetylene gas heating in industrial environments, and this positioning deserves detailed examination because the case for that replacement is compelling across multiple dimensions:

Safety — Oxy-acetylene equipment represents one of the most significant fire, explosion, and burn hazards in any industrial facility. High-pressure gas cylinders, explosive gas mixtures, open flames capable of reaching temperatures exceeding 3,000°C, and the requirement for significant operator skill to manage the process safely combine to create a risk profile that modern industrial risk management frameworks increasingly struggle to accommodate. The IHT-30 eliminates all of these hazards at a stroke — no gas cylinders, no flammable gas, no naked flame, and no combustion of any kind. It runs from a standard 230V, 16A electrical supply that is already present in any industrial facility.

Control — Oxy-acetylene heating is, fundamentally, an imprecise process. The operator controls heat input through torch positioning, gas flow adjustment, and experience-based judgement — variables that introduce significant process variability and are heavily dependent on operator skill. The IHT-30's computer-controlled three heating modes deliver consistent, repeatable, and measurable heating processes that do not vary with operator experience or fatigue.

Economy — Industrial gas supply is a significant ongoing cost — cylinder hire, gas consumption, delivery, and the associated compliance and storage costs accumulate substantially over the course of a year. The IHT-30's electrical operation eliminates these costs entirely, with the energy consumption of a 3.5kW electrical heater representing a fraction of the equivalent gas cost for the same heating output over time.

Compliance — The regulatory and compliance requirements surrounding the storage, handling, and use of compressed and flammable gases in industrial workplaces are substantial. DSEAR assessments, gas cylinder storage compliance, operator training and certification, and ongoing inspection requirements all represent administrative and financial burdens. The IHT-30's electrical operation removes the facility from these compliance obligations entirely for the applications it replaces.

Non-Ferrous Metal Capability

Unlike the lighter IHT-11 and IHT-15 models, which are specifically noted as suitable for ferrous metals only, the IHT-30 is designed for heating ferrous and some non-ferrous metals — significantly extending its application range in industrial and engineering environments where aluminium, copper alloy, and other non-ferrous components may need to be heated as part of manufacturing, assembly, or disassembly processes. This broader material compatibility reflects the IHT-30's industrial specification and its positioning as a replacement for the full range of applications currently served by gas heating equipment.

Technical Specification:

Typical Industrial and Professional Workshop Applications:

• Heavy component seizure removal in commercial vehicle, agricultural, and plant machinery workshops
• Industrial manufacturing and assembly processes requiring controlled ferrous and non-ferrous metal heating
• Precision engineering applications requiring accurate, focused heat application
• Pipe and tube heating for bending, forming, and fitting operations
• Heat shrink fitting and removal of interference-fit components in production environments
• Bearing installation and removal in industrial machinery maintenance
• Structural steel fabrication and repair operations
• Replacement of oxy-acetylene heating in any industrial application where safety, control, and economy are priorities
• Process-integrated heating in automated or semi-automated production facilities
• Agricultural and plant machinery heavy component removal and servicing

Key Features:

• 3.5kW input power, 3kW output on 16A supply — industrial-grade heating capability
• Liquid cooled with 1.5L tank and quiet fan-assisted radiators — continuous industrial use
• Computer-controlled operation — three fully adjustable heating modes for precise process control
• Multi-function display for real-time operational monitoring
• Precise focusing tip for accurate, targeted heat application
• Universal remote control software integration with external digital and analogue systems
• Heats ferrous and selected non-ferrous metals — broader material compatibility
• Directly replaces oxy-acetylene gas heating — safer, more controllable, more economical
• No naked flame, no gas cylinders, no combustion — runs from standard 230V 16A supply
• Operating frequency 20–60kHz for optimised heating across varied component types and sizes
• Dimensions 430 x 200 x 200mm, weight approximately 14.6kg
• Draper Expert professional grade industrial quality
• Product Code: IHT-30
• Brand: Draper Expert

Suitable For: Industrial workshops, engineering facilities, manufacturing plants, heavy vehicle and commercial vehicle workshops, agricultural and plant machinery maintenance operations, structural fabrication workshops, precision engineering facilities, and any industrial environment currently using oxy-acetylene or other gas-based heating equipment where safety, process control, economic operation, and regulatory compliance improvements are priorities. Suitable for heating ferrous and selected non-ferrous metals.