BK SERIES THREE LOBES ROOTS BLOW
Product Description
Roots Blower is a cubage blower, and it discharges a fixed amount of air in proportion to its rotation speed.Every rotation,there is two lobes to finish three times absorbing and discharging air.Compared with two lobes blower,it is of less air pulses,smaller load change,higher strength,lower noise and vibration.
Two parallel shafts have three lobes each ,all the lobes keep small clearance with each other and housing inside.Every lobes rotation ,a certain air will be absorbed at inlet and transferred from the housing inside surface to blower's discharge port.
Two shafts will be turned by the timing gears, no any touching between lobes,so it can be turned at high speed without any lubrication inside.It has the following characteristics: Simply configuration;running smoothly;good performance stabilization.It has been widely applied in various industries.
1,Optimized lobe curve is adopted for reducing blower's internal leakage,improving blower's efficiency and reducing running temperature.
2, After shaft's diameter enlarged,no deformation and collision will occur under higher load pressure as the blower's strength is improved.
3,The synchromesh gear adopts straight tooth structure for smooth operation.
4,Deep groove ball bearing of high precision and low friction factor is selected for lowering operation noise.In addition,because of large size bearing matched for enlarged shaft diameter,the bearing's load capacity is enhanced and its service life is extended.
5,Low noise and vibration, compact and economical energy consumption.
Product Parameters
| Model |
Port Dia
(mm) |
Speed
(rpm) |
Pressure
(kgf/cm²) |
Inlet Airflow
(m³/min) |
Shaft Power
(Kw) |
| BK4005 |
40(1.5″) |
1500-2300 |
0.1-0.8 |
0.42-1.80 |
0.82-2.81 |
| BK4007 |
50(2″) |
1500-2200 |
0.1-0.8 |
0.99-2.69 |
1.04-3.75 |
| BK5003 |
65(2.5″) |
850-2000 |
0.1-0.8 |
3.43-7.15 |
0.95-12.29 |
| BK5006 |
100(4″) |
850-2000 |
0.1-0.8 |
4.9-12.14 |
1.48-16.76 |
| BK5009 |
100(4″) |
850-2000 |
0.1-0.5 |
4.89-17.86 |
2.08-17.92 |
| BK6005 |
80(3″) |
850-1800 |
0.1-0.8 |
4.22-11.74 |
1.66-19.31 |
| BK6008 |
125(5″) |
850-1800 |
0.1-0.8 |
6.49-20.01 |
2.54-30.32 |
| BK6015 |
150(6″) |
850-1800 |
0.1-0.5 |
14.23-37.95 |
4.61-36.71 |
| BK7006 |
100(4″) |
700-1500 |
0.1-0.8 |
5.01-16.44 |
2.08-27.49 |
| BK7011 |
150(6″) |
700-1500 |
0.1-0.8 |
9.66-30.56 |
3.69-43.4 |
| BK7018 |
200(8″) |
700-1500 |
0.1-0.5 |
18.98-50.47 |
6.55-47.33 |
| BK8016S |
150(6") |
700-1500 |
0.1-0.8 |
15.21-47.14 |
11.16-65.36 |
| BK8024S |
200(8") |
800-1250 |
0.1-0.6 |
33.69-77.85 |
19.47-70.16 |
| BK9020S |
200(8") |
1000-1500 |
0.1-0.8 |
42.58-80.18 |
24.34-106.8 |
| BK9030S |
250(10") |
850-1500 |
0.1-0.8 |
71.52-116.5 |
31.99-157.6 |
| BK10027S |
300(12") |
850-1500 |
0.1-0.8 |
63.16-136.2 |
40.13-175.9 |
| BK10034S |
350(14") |
700-1400 |
0.1-0.8 |
71.47-181 |
44.77-245.9 |
| BK Outline Dimension Sheet |
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Unit:mm |
| Type |
Port Dia |
Motor power |
A |
B |
C |
D |
E |
F |
G |
H |
K |
M |
N |
0 |
P |
Q |
4-M16×h |
Weight
(kg) |
| BK4005 |
40(1.5") |
1.5~4 |
700 |
590 |
90 |
90 |
456 |
194 |
215 |
827 |
129 |
300 |
370 |
95 |
130 |
18 |
4-M16×300 |
65 |
| BK4007 |
50(2") |
1.5~5.5 |
820 |
640 |
90 |
90 |
457 |
185 |
236 |
872 |
151 |
370 |
440 |
105 |
130 |
18 |
4-M16×300 |
92 |
| BK5003 |
65(2.5") |
5.5~7.5 |
1190 |
940 |
90 |
200 |
532 |
172 |
200 |
1072 |
133 |
346 |
410 |
115 |
190 |
18 |
4-M16×300 |
171 |
| 11~15 |
474 |
538 |
| BK5006 |
100(4") |
5.5~7.5 |
1220 |
980 |
90 |
228 |
592 |
199 |
234 |
1216 |
170 |
369 |
433 |
150 |
230 |
18 |
4-M16×300 |
204 |
| 11~15 |
489 |
553 |
| 18.5~22 |
534 |
598 |
| BK5009 |
100(4") |
5.5~7.5 |
1255 |
984 |
110 |
192 |
608 |
204 |
272 |
1225 |
163 |
325 |
409 |
150 |
230 |
18 |
4-M16×300 |
239 |
| 11~15 |
428 |
512 |
| 18.5~22 |
473 |
557 |
| BK6005 |
80(3") |
5.5~7.5 |
1330 |
1054 |
100 |
221 |
598 |
179 |
237 |
1162 |
161 |
332 |
406 |
135 |
200 |
18 |
4-M16×300 |
241 |
| 11~15 |
458 |
532 |
| 18.5~22 |
493 |
567 |
| BK6008 |
125(5") |
5.5~7.5 |
1335 |
1084 |
110 |
222 |
688 |
206 |
297 |
1375 |
150 |
300 |
385 |
165 |
250 |
18 |
4-M16×400 |
290 |
| 11~15 |
410 |
495 |
| 18.5~22 |
455 |
540 |
| 30 |
495 |
580 |
| 37~45 |
560 |
645 |
| BK6015 |
150(6") |
11~22 |
1340 |
1064 |
113 |
222 |
748 |
232 |
364 |
1460 |
238 |
476 |
573 |
180 |
280 |
24 |
4-M16×400 |
380 |
| 30 |
539 |
636 |
| 37~45 |
563 |
660 |
| BK7006 |
100(4") |
11~15 |
1495 |
1214 |
113 |
282 |
725 |
205 |
254 |
1432 |
198 |
489 |
563 |
150 |
230 |
18 |
4-M16×400 |
385 |
| 18.5~22 |
534 |
608 |
| 30 |
574 |
648 |
| 37~45 |
636 |
710 |
| BK7011 |
150(6") |
11~15 |
1495 |
1200 |
123 |
271 |
829 |
232 |
324 |
1484 |
190 |
443 |
536 |
180 |
280 |
24 |
4-M16×400 |
477 |
18.5~22
30 |
457 |
550 |
| 30 |
497 |
590 |
| 37~45 |
559 |
652 |
| BK7018 |
200(8") |
11~45 |
1550 |
1250 |
125 |
271 |
894 |
266 |
413 |
1660 |
279 |
558 |
647 |
190 |
350 |
24 |
4-M16×400 |
564 |
| 55 |
628 |
717 |
| BK8016S |
150(6") |
30~90 |
1658 |
1390 |
105 |
283 |
962 |
332 |
413 |
1862 |
217 |
670 |
780 |
180 |
280 |
24 |
4-M16×400 |
730 |
| BK8024S |
200(8") |
22~90 |
1750 |
1490 |
105 |
345 |
1010 |
284 |
452 |
1890 |
334 |
780 |
875 |
190 |
350 |
24 |
4-M16×400 |
800 |
| BK9020S |
200(8") |
30~132 |
4-M16×400 |
| BK9030S |
250(10") |
37~90 |
2140 |
1840 |
105 |
385 |
1056 |
294 |
544 |
2118 |
344 |
808 |
918 |
230 |
360 |
38 |
4-M16×400 |
1300 |
| 110~220 |
960 |
1070 |
| BK10027S |
300(12") |
37~90 |
2070 |
1750 |
105 |
375 |
1144 |
289 |
587 |
2274 |
334 |
860 |
970 |
245 |
380 |
38 |
4-M16×400 |
1600 |
| 10~220 |
2210 |
1890 |
960 |
1070 |
| BK10034S |
350(14") |
75~315 |
2255 |
1940 |
105 |
455 |
1268 |
344 |
642 |
2347 |
432 |
990 |
1100 |
260 |
440 |
38 |
4-M16×400 |
1900 |
| Dimension for BK12034 and BK12042 will be supplied specially. |
| Standard accessory include:Inlet and outlet silencer,pressure gauge,base-frame,blower's pulley,motor's pulley,belt,belt guard,relief valve,check valve. |
| The weight above are for standard accessories only,motor excluded. |
Product Applications
Our products are widely used. The company takes on keep improving our forever seeking; Satisfy customers our invariable promise as its tenet and has won high credit from the market.
Main Products
Company Development History
1,In 1994,Yixing Pengde Machinery Co.,Ltd. ( a Sino-Japanese joint Venture) was born,and relocated in the Industrial Park for Environmental SCI and TECH. The following year with company name changed to B-Tohin Machine (Jiangsu)Co.,Ltd.
2,Localization of HC blower in 1996
3,In 1999,established a joint venture named Tohin Machine Co.,Ltd. with TUTHILL Pneumatics Group (United States).
4,Localization and mass sales of BK blower in 2000
5,In 2004,HC Blower and BK Blower got the honor of "new high-tech product",and the company was rated as a high-tech enterprise. In the same year,the company passed ISO9001 certification,purchased more than 30000 square meters for new plant and donated 500000 yuan to build the B-Tohin Qinghu Hope Middle School.
6,In 2009,the single-stage high-speed blower was successfully launched, and BK was rated as famous trademark of Wuxi City and famous trademark of Jiangsu Province.The torch program project of Jiangsu Province and a number of patents were achieved ,also the company's together-with-heart idea: attentively,sincerely,confidently was put forward.
7,The company's BK brand was rated as "China Well-known Trademark" in 2013.
8,In 2014,the company was identified as "Jiangsu Aerodynamic Research Center" by the Science &Technology Department of Jiangsu Province,and got the ISO14001 certificate.At the same time,Office Automation was put into use successfully.
9,In 2015,the company introduced a whole blower performance test system.Successfully bid for the 2600 square meters industrial assets in Yixing economic development zone and established Wuxi B-Tohin Blower Technology Co.,Ltd.
10,In 2016, Sino-Korean joint venture Wuxi B-Tohin & Ace Blower Science and Technology Co.,Ltd. was established. In the same year,air foil centrifugal blower was successfully introduced,and Tohin Vietnam Industry was founded.
11,In 2017,the company turned on the Internet of things intelligent ,the balance tester of Air Bearing Turbo Centrifugal blower was successfully put into use .The Science and Technology Association of B-Tohin was founded.
12,In 2018, B-Tohin magnetic suspension centrifugal blower,stainless steel blower and other new products were successfully launched.
13,In2019,Adopted the ERP platform management in the whole company and passed the assessment of "Informational and Industrialize Integration" in 2019.
14,B-Tohin screw blower was put on market successfully in 2021.
15,Launched contract energy management and new type product lease sales in 2022.With a new area of 75000 square meters acquired, the project of design and intelligent manufacturing base of high efficiency blower and office building of B-Tohin started.
The new factory building was successfully completed and relocated.
Exhibition
Customers and Us
FAQ
Q1. What's the information should I provide when inquiry?
A: Air capacity
B: Pressure
C: Application
D: Use environment(Temperature, atmospheric pressure)
E: Do you need motor?
Or other specials you give us will be more appreciated.
Q2. What is your warranty?
Our warranty is 12 months after received the roots blower. During the warranty period, replace the damaged parts for free of charge. Out warranty period, to provide timely, high-quality technical services and price concessions spare parts to ensure continuous safe and high-quality equipment operation.
Q3. How long is the service life of roots blower?
In normal use environment
A- Service life of blower is more than 10 years.
B- Service life of Impeller is more than 60, 000 hours.
C- Service life of bearing is more than 50, 000 hours.
D- Service life of gear is more than 60, 000 hours.
Q4. What is your terms of packing?
A: Generally, we pack our goods in Fumigation Free Plywood Case. If you have legally registered patent, we can pack the goods in your branded boxes after getting your authorization letters.
Q5. How does your factory control product quality?
We have quality inspection department. Before sending out product, we check each product. If there is quality problem, we will produce new one.
Q6. What are your terms of payment?
TT 30% as the advance payment and TT 70% after inspection before shipping.
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