Flextool Equipment Pvt. Ltd.

Who We Are?

Pioneering Vibratory Stress Relieving Technology Since 1998

Welcome to FlexTool Equipment Pvt Ltd, a premier engineering firm dedicated to advanced metal stabilization and structural integrity. For over two and a half decades, we have been the trusted partner for the heavy engineering, fabrication, and manufacturing sectors, delivering state-of-the-art, non-thermal stress relief solutions.

25+ Years

of continuous engineering excellence. Trusted expertise delivering precision, quality, and reliability.

Professional & Experienced Staff

A team built on experience and technical excellence. Leaders in vibration stress relief applications.

High Quality & Reliable Service

Delivering superior quality, every time. Backed by dependable and consistent service.

Committed & Focussed

Consistent commitment to our clients. Recognized as a trusted and preferred choice.

Vibratory Stress Relieving System

STREL-Q Vibratory Stress Relieving System (VSR-AF)

Provides highly effective residual stress relief to ensure the dimensional stability of critical parts, featuring upgraded automation and data logging capabilities.

STREL-Q Vibratory Stress Relieving System (VSR-AT)

Provides highly effective residual stress relief, ensuring dimensional stability for critical parts

Decarbonizing Heavy Manufacturing:

The Carbon Footprint of Stress Relieving

As the global manufacturing sector shifts toward sustainable practices and stringent Environmental, Social, and Governance (ESG) targets, auditing energy-intensive processes has never been more critical.

For decades, Thermal Stress Relieving (TSR) has been the accepted standard for achieving dimensional stability in metal components. However, it relies on massive, fossil-fuel-guzzling or high-amperage electric furnaces.

Today, Vibratory Stress Relieving (VSR) offers a fundamentally cleaner, faster, and highly precise alternative. By using targeted, sub-harmonic mechanical vibrations instead of brute-force heat, VSR achieves metallurgical stability while eliminating up to 99% of the process’s carbon footprint.

Why the Carbon Discrepancy is so Massive

To understand the difference in emissions, you must look at the mechanics of how energy is applied in both processes:

The Inefficiency of Heat (TSR): A thermal furnace does not just heat the metal component. It must consume vast amounts of energy to heat the ambient air inside the chamber, the heavy refractory brick lining, and the transport bogie. Furthermore, this energy must be sustained for hours (or days) through the slow rate-of-rise, soaking, and rate-of-fall cooling cycles.

The Precision of Resonance (VSR): VSR equipment introduces energy directly into the component. By clamping a variable-speed force inducer onto the part and tuning it to the structure's natural resonant frequencies, the energy is utilized entirely for internal friction and stress redistribution. The process is complete in under an hour and runs on standard industrial electricity.

Real-World Case Study: 10-Ton Steel Fabrication

To illustrate the stark contrast in environmental impact, let us examine a standard industrial job: stress relieving a 10-ton (10,000 kg) carbon steel welded structure.

The Thermal Approach (TSR)
To thermally treat this 10-ton structure, it must be heated to a sub-critical temperature of approximately 600°C (1,112°F).
- Time Required: A conservative cycle requires a 4-hour heat ramp-up, a 4-hour soak (rule of thumb: 1 hour per inch of thickness), and a 6-hour controlled cool down. Total time: ~14 hours.
- Energy Consumed: Industrial furnaces typically require around 200 kWh of energy per ton of steel processed to account for thermal losses and heating the furnace itself.
- Total Energy: 2,000 kWh
The Vibratory Approach (VSR)
The VSR equipment is brought to the 10-ton part on the shop floor.
- Time Required: A pre-scan determines the resonant frequencies, followed by a sub-harmonic treatment cycle, and a final post-scan to verify structural stabilization.
- Energy Consumed: The VSR drive motor draws a maximum of 1.5 kW
- Total Energy: Running for a maximum of 1 hour, the total energy consumed is 1.5 kWh.

Carbon Footprint Comparison Matrix

Note: Carbon equivalent (CO2e) calculations below are based on an average global electrical grid emission factor of 0.45 kg CO2e per kWh. Actual emissions for TSR will vary based on whether the furnace uses electricity, natural gas, or diesel.

Metric	Thermal Stress Relieving (TSR)	Vibratory Stress Relieving (VSR)	VSR Advantage
Total Process Time	14 Hours	45 – 60 Minutes	93% Faster
Energy Consumption	~ 2,000 kWh	1.5 kWh	99.9% Less Energy
Carbon Footprint (CO2e)	900 kg CO2e	0.675 kg CO2e	Eliminates ~899 kg CO2e

What does 900 kg of CO2 look like?

Choosing VSR over TSR for just one 10-ton job prevents the same amount of greenhouse gas emissions as:

Driving an average gasoline-powered passenger vehicle for 2,300 miles (3,700 km).
Burning 1,000 pounds of coal.
The carbon sequestered by 15 tree seedlings grown for 10 years.

Beyond Carbon: The Secondary Environmental Benefits of VSR

Reducing direct energy consumption is only the first step in VSR's sustainable profile.

Elimination of Transportation Emissions: Because TSR requires massive furnaces, large components must often be loaded onto diesel flatbed trucks and shipped to off-site heat-treating facilities. VSR equipment is highly portable, bringing the treatment to the workpiece and eliminating all logistical carbon emissions.
No Toxic Scale or Post-Cleaning: Thermal treatment of steel in standard atmospheric furnaces produces heavy oxidation and scale. This requires post-weld cleaning, often utilizing energy-intensive sandblasting or highly toxic chemical pickling baths. VSR leaves the metal surface perfectly clean and completely unaltered.
Extended Component Lifespan: By effectively neutralizing peak residual stresses without degrading the material's tensile strength or hardness (a common risk in poorly controlled TSR), VSR ensures a longer fatigue life for the final product, reducing the need for early replacement and remanufacturing.