ROCK with you
GREETING

Rock Engineering Co., Ltd. was established at Chonburi province, Kingdom of Thailand in 2017. We aim to be
the leading company in engineering of wasted water treatment and contribute to customers’ sustainable development
through providing cutting-edge technology of distillation, concentration and drying.

We, all associates, always pursue innovation, take on new challenges,
devote ourselves to contributing customers with high motivation and integrity.
We conduct full-supports for customers in Thailand as well as other ASEAN countries.
PRODUCTS
All of our products are design,fabrication and assemly in Thailand under supervised by Japanese engineer.
Therefore, it is possible to respond quickly in case of emergency trouble
and accurately to requests such as modification (machine, electricity, control) etc.
  • Rock-E
  • -High Performance MVR Evaporator-
  • TDS
  • Heavy Metal
  • Oil & Grease
  • High COD
  • Large capacity
    Available for large flow rate
    such as 20-120 m3/day.
  • Easy maintenance
    Easy maintenance by using plate
    heat exchanger for the main heater.
  • Ecconomical design
    Saving initial cost and operation cost adopt
    with MVR heat pump technology.
  • Stable running
    Adopted advanced IEC (Intelligent Evaporation Control)
    technology and realized stable continuous operation.
MODEL & SPEC
MODEL TYPE-1 TYPE-2 TYPE-3 TYPE-4 TYPE-5 TYPE-6
Capacity 20m3/day 40m3/day 60m3/day 75m3/day 90m3/day 120m3/day
Start up steam 0.3-0.8MPa 200kg 300kg 450kg 540kg 600kg 600kg
Power
consumption
3P380V50Hz
56kwh 91kwh 134kwh 145kwh 170kwh 220kwh
Cooling water 32C deg in
37C deg out
1,500 L/hr 2,500 L/hr 3,000 L/hr 4,500 L/hr 5,000 L/hr 6,000 L/hr
Compressor air 0.5MPa
or above
5m3(N)/hr
Installation area For reference
W : 5,500
D : 7,500
H : 7,000
W : 7,000
D : 7,500
H : 8,000
W : 9,500
D : 7,500
H : 9,000
W : 10,000
D : 8,500
H : 10,500
W : 10,000
D : 8,600
H : 10,750
W : 10,000
D : 9,000
H : 10,750
This device is a evaporation and concentrating device with high flow rate and low running cost which adopt
advanced MVR type heat pump technology.
Installation examples
  • Rock-D
  • -Ultimate Vacuum Dryer-
  • TDS
  • Heavy Metal
  • Oil & Grease
  • High COD
  • ZLD
  • Vapor purificate technology
    Unique "Vapor purification technology" will implement
    best quality of recovered water on compact design.
  • Tough Design
    Tough design based on
    abundant experience.
  • Easy operation
    Everybody can operate easily with
    "Sophisticated user interface (Touch screen)".
  • Stable performance
    Unique design agitator to prevent evaporation
    capacity decline due to scaling.
MODEL & SPEC
MODEL 1D70 1D120 2D70 2D120 1D300 3D120 4D120 2D300 3D300 4D300
Capacity 70
L/hr
120
L/hr
140
L/hr
240
L/hr
300
L/hr
360
L/hr
480
L/hr
600
L/hr
900
L/hr
1,200
L/hr
steam 0.3-0.8MPa 70.0
kg/hr
120.0
kg/hr
140.0
kg/hr
240.0
kg/hr
300.0
kg/hr
360.0
kg/hr
480.0
kg/hr
600.0
kg/hr
900.0
kg/hr
1200.0
kg/hr
Power
consumption
3P380V50Hz
2.9
kwh
4.3
kwh
5.1
kwh
8.0
kwh
6.5
kwh
9.7
kwh
12.6
kwh
12.4
kwh
19.1
kwh
25.7
kwh
Compressor air 0.5MPa
or above
5m3(N)/hr
Cooling water 32C deg in
37C deg out
134
L/min
230
L/min
268
L/min
460
L/min
575
L/min
690
L/min
920
L/min
1,150
L/min
1,725
L/min
2,300
L/min
Dimension
W : 700
D : 2,224
H : 3,000
W : 850
D : 2,574
H : 3,150
W : 1,400
D : 2,224
H : 3,000
W : 1,700
D : 2,574
H : 3,150
W : 1,150
D : 3,724
H : 3,450
W : 2,550
D : 2,574
H : 3,150
W : 3,400
D : 2,574
H : 3,150
W : 2,300
D : 3,724
H : 3,450
W : 3,450
D : 3,724
H : 3,450
W : 4,600
D : 3,724
H : 3,450
*Machine dimension is not include control panel and maintenance space arround machine
This device is a vacuum dryer designed based on abundant experience and specialized for volume reduction of high concentration waste water. Based on extensive experience, we are designing with an emphasis on sufficient durability against load acting on each part. By vacuum pressure in the tank to be treated to -90 kPa, the boiling point of the liquid is lowered, enabling energy-saving and space-saving processing. It reduces the load on existing wastewater treatment system and reduces the disposal cost of liquid industrial waste.
TECHNOLOGY
Waste water name :
CONC.Acid waste water
Parameter Unit Raw water Recovered water Sludge
pH 8.9 5.7
BOD mg/l 529 < 3
COD mg/l 1,300 8
SS mg/l 82 < 2.5
TDS mg/l 82,400 35
Grease & Oil mg/l < 5 16
Notes : We adjusted pH by NaOH before inlet to test machine
Waste water name :
Coolant waste water
from Machining process
Parameter Unit Raw water Recovered water Sludge
pH 9.2 10.9
BOD mg/l 16,930 234
COD mg/l 86,240 2,842
SS mg/l 32 < 10
TDS mg/l 35,000 < 50
Grease & Oil mg/l 25,792 18
Fluoride mg/l 15 1.8
Chloride mg/l 52 21
Sulfate mg/l < 0.20 < 0.20
Notes : Reduction rate is 95.95 %
Waste water name :
Electroless Ni plating waste water
(Plating tank replacement water )
Parameter Unit Raw water Recovered water Sludge
pH 4.6 3.2
BOD mg/l 25,490 2,830
COD mg/l 79,550 3,980.0
SS mg/l 256 ND
TDS mg/l 314,200 50
Grease & Oil mg/l < 5 ND
Ni mg/l 3,865 0.925
Cu mg/l ND 5.460
Mn mg/l 0.371 < LOQ(0.020)
Zn mg/l 590 0.743
Fluoride mg/l 1.040 0.400
Notes : Reduction rate is 73.2 % , ND = Not Detacted
Waste water name :
Electroless Ni plating waste water
(Plating tank replacement water )
Parameter Unit Raw water Recovered water Sludge
pH 9.3 9.8
BOD mg/l 13,240 54
COD mg/l 82,908 102
SS mg/l 21,484 < 10
TDS mg/l 243,905 1,744
Grease & Oil mg/l 466 2
Fluoride mg/l 14 6.1
Chloride mg/l 410 8
Sulfate mg/l 2,682 0.8
Notes : Reduction rate is 72.3 % , We adjusted pH before inlet test machine
COMPANY PROFILE
Company Name ROCK ENGINEERING CO., LTD.
Address 24/4 Moo1, T.Nong Ri, A.Mueang, Chonburi 20000
TEL 038-057-430
FAX 038-057-431
E-mail iwata@rock-engineering.net (Japanese・English)
atchara@rock-engineering.net (Thai)
Date of foundation September 22, 2017
Managing Director Yoshifumi Iwata
Employees
8 Maintenance & Service 4 / Sales engineering 2
Project engineering 1 / General affair and accounting 1
Related Company Sun-up Corporation (Thailand) Limited   WEB
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