High performance mist lubricant for increased tool life. Superior machining performance on large jobs with mist lubricant, Beruform STO 110. A global supplier of electromechanical systems for hydro-power plants found itself in a spot of bother when performance of the coolant did not meet its expectation in its newly installed machining centre for large complex jobs. With a revised MQL system in place, Beruform STO 110 by Bechem was tried out against the earlier recommended coolant. Berfuform STO 110 outperformed the recommended coolant in every performance parameter measured with increase in tool life and savings in coolant consumption Visit: www.bechemindia.com

1. W W W. B E C H E M I N D I A . C O M
MADE FOR MQL: Beruform STO 110
High performance mist lubricant for increased tool life

2. DESCRIPTION
PROBLEM
A global supplier of electromechanical systems for
hydro-power plants found itself in a spot of bother when
performance of the coolant did not meet its expectation
in its newly installed machining centre for large complex
jobs.
With a revised MQL system in place, Beruform STO 110
by Bechem was tried out against the earlier recommended
coolant. Berfuform STO 110 outperformed the recommended
coolant in every performance parameter measured with
increase in tool life and savings in coolant consumption.
“ Superior machining
performance on large
jobs with mist lubricant,
Beruform STO 110 ”

3. The Global company, a market leader in manufacturing electro mechanical
systems for hydropower plants had expanded its existing production line with
new ‘5 axis CNC machining centre’ in its plant in India. The new line with
special machining centre from europe’s leading machine tool manufacturer
was installed with the objective of machining typical hydroplant components
such as turbine runners, valves, penstock and gates.
The specially designed machining centre provided a boost to the Customer’s
production capability and versatility in machining large complex jobs. The
production team however experienced inconsistencies in performance of
coolant which led to decrease in tool life. The maintenance and service teams
after a thorough check decided to replace the coolant
BECHEM was asked to provide its coolant recommendation for the special
machining centre against the approved coolant.
BACKGROUND
CASE STUDY.
WWW.BECHEMINDIA.COM

4. APPROACH
BECHEM’s
The BECHEM team studied the machining process, MQL system in
place and recommended Beruform STO 110. The team was
confident that the unique formulation of STO 110 would provide the
necessary lubrication and cooling of work piece and tool area
there by increasing tool life.
Additionally, STO 110 free of chlorine, sulphur and heavy metal
containing additives, was the preferred choice of the customer.
The non sticky nature of oil leaves no residue and ensures stain free
machine and components.
Machining process details
• Material : Stainless Steel 304 and 316
• Machining operation : Profile milling
• Components : Turbine runner (Pelton / Francis), Valves, Pen
Stock and Gates
Details of the MQL system and machining process
• Air and oil mist lubrication system with two outlets
• Two standard pumps with horizontal outlet
• Discharge : 0 to 30 cc (adjustable) per stroke
• Frequency generator of 1 cycle per minute
• Oil pressure : Upto 5 bar

5. COMPARISON
PRODUCT
Parameters
Appearance (Concentrate) Stable amber fluid Light yellow clear fluid
Viscosity @ 40 °C (cSt) 37 41-50
Density @ 15 °C g/ cm2 0.9 0.92
Flash Point °C ≥300 320
Pour Point °C -20 -40
Product X Beruform STO 110

6. 12% 24%INCREASE IN TOOL LIFE REDUCTION IN COOLANT
CONSUMPTION
TRIAL OUTCOME
A trial was taken with 5 Kg sample of Beruform STO 110 and Product X (approved product).
Key Observations
• 12% increase in tool life with Beruform STO 110 compared to the existing coolant
• Reduction in coolant consumption by 25% with STO 110
• Better surface finish with STO 110
• Minimal trace of oil on components, which could be easily cleaned with conventional
cleaning methods
The trial led to Beruform STO 110 being established as
the recommended coolant for machining on the special
machining centre with MQL system

7. TAKEAWAYS
KEY
Beruform STO 110
provides superior
machining performance
in MQL systems.
The unique formulation
of STO 110 provides
better lubricity and
increase in tool life
STO 110 is non sticky
in nature and leaves
minimal residue on
components and no
stains on machines
STO 110 is devoid of
heavy metal additives,
chlorine and sulphur

8. Carl Bechem Lubricants India Private Limited
#28 D, Bidadi Industrial Area, Bangalore - 562109
Mob: +91 9379917484 | Phone : 080 6690 0800
Email: sales@bechemindia.com | www.bechemindia.com