Electronic enterprise engineering

Electronic enterprise engineering

Our company designs and constructs class 100~1000000 purification plant, lab, pharmaceutical factory, clean workshop, electronic, fiber, cable, printing industry clean workshop, food industry clean workshop, hospital operating room sterile ward, fabricated clean room and other air purification engineering, and also produces a variety of clean bench, air shower, FFU, primary/medium/high efficiency filter, clean booth, transfer window and other purification products. Our company has perfect inspection tool, verification from technical supervision bureau. Since the company undertook projects, all the projects have already verified by relevant units.

  • Industry case
  • Engineering parameters
  • Other engineering cases




Jinda purification advantages

With economic development into 20th century, the world is paying more attention to environmental protection and purification, customers are strict with product surface processing craft. Our company starts to refer and introduce world leading environmental friendly painting technique and production process, with the cooperation, guidance, efforts, relying on advanced technology and years of experience in project construction, plans, designs and produces complete sets of projects for customers:

1.Contract to build a variety of purification levels, process requirements, plane layout of air condition purification plant, clean lab.

2.Design, construct food industry purification plant, assist in QS verification.

3.Contract to build special required purification plant for relatively negative pressure, high temperature, fireproof, explosion-proof, sound-proof, sterilization, odour discharging, anti-stastic, etc.

4.Contract to build purification plant matched light, electrical devices, power and electrical control system and air conditioning automatic control system.

5.Contract to build constant temperature and humidity purification plant system, air- conditioner room, refrigerator room.

6.Undertake the purification plant matched water supply and drainage, water treatment and air treatment system.

7.Undertake engineering consultation, debugging, detection of air conditioning system.


Clean workshop design fundamental

Clean workshop design must be technique advanced, economical affordable, safe and reliable, high quality, and in accordance with requirements of energy saving, labor hygiene and environmental protection.



lab facility construction

lab construction points

For the safety of people, objects, external environment; comfort environment of noise, peculiar smell, vision, operability, functionality of equipment, convenience and intelligence of information processing and other characteristics various from general buildings, we have the best design, high quality equipment and reasonable, safe and convenient plan.


clean parameter

ISO gradeOrdinal number International unit British unit maximum concentration limit greater than or equal to the particle size in the table(pc/m3)
0.1μm 0.2μm 0.3μm 0.5μm 1μm 5μm
ISO Class1   -1 10 2 0      
ISO Class2   0 100 24 10 4    
ISO Class3 M1.5 1 1,000 237 102 35 8  
ISO Class4 M2.5 10 10,000 2,370 1,020 352 83  
ISO Class5 M3.5 100 100,000 23, 700 10, 200 3, 520 832 29
ISO Class6 M4.5 1,000 1, 000, 000 237, 000 102, 000 35,200 8, 320 293
ISO Class7 M5.5 10, 000       352, 000 83,200 930
ISO Class8 M6.5 100, 000       3, 520, 000 832, 000 29,300
ISO Class9   1,000, 000       35,200, 000 8, 320, 000 293,000


Good Manufacture Practice of Medical Products (GMP-98) standard
Cleanliness class Maximum number of allowed dust particle /pc.m-3 Maximum number of allowed microorganism
 ≥0. 5μm ≥ 5μm planktonic bacteria /per.m-3 settling bacteria(per/dish)
100class 3, 500 0 5 1
10, 000class 350,000 2,000 100 3
l00,000class 3, 500, 000 20,000 500 10
300, 000class 10, 500, 000 60, 000 1, 000  


Operating room air cleanliness standard
Clean room class standard cleanliness class >0.5μm particle concentration (per/liter) Bacterial concentration
planktonic bacteria /per.m-3 settling bacteria(per/dish)
First class clean operating room Surgery area 100 class ≤3.5 ≤5 ≤0.2
Second class clean operating room Surrounding area 1000 class ≤35 ≤10 ≤0.4
Surgery area 1000 class ≤35 ≤25 ≤ 0. 75
Third class clean operating room Surrounding area 10000 class ≤350 ≤50 ≤1.5
Surgery area 10000 class ≤350 ≤75 ≤2
Fourth class clean operating room Surrounding area 100000 class ≤3500 ≤150 ≤4
300000class ≤10500 ≤175 ≤5
Second class clean subsidiary room 10000 class ≤350 ≤50 ≤1.5
Third class clean subsidiary room 100000 class ≤3500 ≤150 ≤4
Fourth class clean subsidiary room 300000 class <10500 <175 名5





Clean workshop: fully enclosed clean room, class 100- 300000 purification. The room body is formed by EPS color plate, made by machine and assembled on site, arc treated inner walls, epoxy self-leveling floor, to prevent dust accumulation. Purifying lights are reasonably arranged at the top surface, the wall has a large window, to increase lighting and perspective; the air circulation system formed of air supply and exhaust unit ensures clear and clean of the indoor air.

Clean room structure materials

1.The wall and roof materials usually adopt 50mm sandwich color plate, purification specialized aluminum oxide to produce. The door of clean room uses purification air-tight door, the window uses aluminum alloy glass fixed window.

2.Clean room floor uses epoxy self-leveling floor of advanced abrasion resistance plastic clean floor.

3.Clean room ventilation pipe uses galvanized steel sheet to produce, and uses “PEF”flame-retarding insulation board to keep warm. Cleanliness class of clean room and suspended particles in the air: equal ISO air cleanliness is greater than or equal to the maximum particle concentration limit (P/m - air) cleanliness grade in the watch.

Clean room is also called dust free room. It is the basis to control pollution. Without clean room, contamination sensitive parts are not likely to be produced in batches. In FED-STD-2, clean room is defined as a room for air filter, distribution, optimizing, constructing materials and devices, in which the specific rule of operation procedure to control airborne particle concentration so as to achieve proper level of particle cleanliness.

Clean room is a special designed room to eliminate corpuscle, harmful air, bacteria and other pollutants in the air within a certain area, and to control indoor temperature, cleanliness , indoor pressure, airflow speed, airflow distribution, noise vibration, light, static within a certain requirement scope. That is, no matter how the external air conditions change, the indoor can keep the original set of cleanliness, humiture, pressure and other performances. The main function of clean room is to control cleanliness and humiture of air the product(such as silicon chip) contacted, make the product produced and manufactured in a good environment, such space we called clean room.

Fabricated clean room system mainly consists of air conditioning air supply, return and exhaust system of primary, medium, high efficiency filter; power and lighting system; work environment parameters monitoring alarm, fire and communication system; flow and logistics system; process pipe system; maintenance structure and eletrostatic floor treat and other required implementation content.


1.  All the maintenance components of fabricated clean room are processed in the industry according to unified modules and series, suitable for mass production, with stable quality and fast delivery.

2.Flexibility, that is suitable for new plant matching installation, also for purification technology transformation of old plant. The maintenance structure can also be assembled freely according to technique requirements, convenient disassembly.

3.It needs small auxiliary building area and low requirement for soil building decoration.

4.The airflow organization form is flexible and reasonable, which can meet the needs of different working conditions and different cleanliness classes.

Clean requirement

(1)Use cleanroom wiper to clean the wall of clean room;

(2)Configure cleanser with 90% deionized water and 10% isopropanol;

(3)Use approved cleanroom specialized detergent

(4)Check dustbin in workshop and reorganize room everyday, and clean in time.

(5)Every floor needs dust collection. Each shift shall indicate the completion of the job on the map, such as where to end and where to start.

(6)Use special mop to clean the floor of clean room.

(7)Dust collection in clean room shall use special vacuum cleaner with high efficiency filter.

(8)All the doors shall be inspected and wiped.

(9)Wipe the floor after dust collection. Wipe the wall once a week.

(10)Dust collection and scrub is also needed under the overhead floor.

(11)Wipe pillar and shore under the overhead floor once every three months.

(12)Always remember wipe from top to bottom, from the furthest away from the door to the direction of the door.

Clean room notice

1.Before entry, notify custodian and pass through basic training.

2.No smoking clean room. Food(drink), outside sundries (such as newspapers, magazines, pencils, etc.) are not allowed to bring in. Strictly prohibit play, run and group chat.

3.Before entry, take out off shoes at designated place, put shoes in shoe cabinet, outerwear in wardrobe, personal effects in personal locker. No food can be placed in the cabinet.

4.Before entry, put on mask, hood, cleanroom attire, shoe covers in order according to procedures, pass through air shower, step on adhesive mats (air shower floor) as you enter.

5.When wearing mask, mask shall be worn over the nose to cover the mouth and nose, so as to avoid contamination during breathing.

6.Before dressing on cleanroom attire, hood, adjust your cloth and hair, in case of unadjustable and uncomfortable after dressing.

7.After a neat appearance, put on hood. Wear principle of hood is:

(1)Hair shall be covered completely in the hood, shall not be exposed.

(2)The hem of the hood shall be flat and scattered over two shoulders, so as not to come off and expose the shoulder and neck after dressed up.

8.Cleanroom attire is put on after hood. The cloth shall in appropriate size, so the trousers or sleeves won’t be too short to expose skin. While dressing, keep the hem of hood flat. Cleanroom attired must not be worn inside-out

9.Shoe covers are put on after cloth. Pull up shoe covers and flat them, make sure them cover trouser.

10.Avoid to touch the palm and fingertips of gloves while wearing (to prevent sodium pollution). After worn, place wrist of gloves inside sleeves to isolate pollution source.

11.After proper dressed up, pass through the air shower and step on adhesive mats as you enter.

12.No matter in or out, cleanroom attire shall be put on or took off at dressing room according to regulations, other area is forbidden. Strictly prohibit to take off while waking in clean room.

13.Periodic clean cleanroom attire, shod covers,etc. Replace any cleanroom attire that is worn or soiled.

14.Remove cleanroom attire in the opposite order from that in which you donned it.

15.Cleanroom attire shall be hung in the upper cabinet of dressing room, shoe covers shall be palced underneath cleanroom attire.

16.It is not allowed to place other items in small cabinet of dressing room, except cleanroom attire and other regulated goods.

17.Except designated paper and objects, other objects are not allowed to carry into clean room.

18.Cleanroom attire is not allowed to take out of the clean room. Please place at designated position after using.

19.Mask and gloves can be self kept or reused according to situations.

20.All objects must be wiped clean by alcohol before taking into clean room.

21.Any equipment entry shall notify manager, entry is permitted after wiped clean outside the clean room.

22.It is forbidden to use unqualified equipment. When emergency occurs, properly handle in accordance with emergency procedures, such as switch off water, electricity, gas, etcs.

23.Fire work is forbidden in clean room, so as to avoid accidents.