We are China manufacturer of high quality grade l7, l43 Threaded Rods and threaded bars in astm a320 standard. Our advantages and more services of threaded steel rods includes:
1) Wide range of diameters from 1/2" - 4"
2) Customized Length from 100mm to 12000mm
3) Good threads at 60 degree
4) Good straightness: 1mm/m max
5) Even hardness on whole bars
5) Proper mechanical properties
7) Full sets of testing equipment: Surface, Dimenstion. Mechanical properties testing
8) Fast delivery time
astm a320 l7,Astm A320 Threaded Rods,astm a320 l7 threaded rod,astm a320 l7 threaded bar,astm a320 l7 steel bar SHANDONG LE REN SPECIAL STEEL CO., LTD. , https://www.sdcolddrawnsteelbar.com
                   Turbo Molecular Pump CFB-9000
Introduction: Â
Turbo molecular Pump uses varies cross-section tips of blades withc have helped enhance blade intensity alleviate rotor weight, shorten run-up time, reduce mechanical loss and prolong lifetime.
Main Technical Date
Model
CFB-9000
Order No.
3190
Inlet flange
-
LF630
Outlet flange
-
LF100
Pumping speed rate
L/s
9000
Compression rate N2/H2
-
1×108/5×103
Limit pressure
Pa
2×10-6
Motor rotation speed
rpm
9000
Run-up time
min
<15
Run-down  time
min
<25
Vibrating value
μm
≤0.15
Back Pump
L/s
>70
Cooling water temperature
ºC
25
Bake-outtemperature
ºC
<100
Cooling water flow quantityÂ
L/min
1
Â
Â
Â
Mounting Position
Â
Vertical  ±5°C
Weight
kgs
180
Compression Ratio Curve CFB-9000
Â
Our Other Products
Packaging & Delivery
Packaging Details:Â Â Â Inner: plastic bag. Outer: carton or wooden case or according to customers' need.
Delivery Detail:Â Â Â Shipped in 3 days after payment
Our company introductionÂ
Chuanbei Vacuum Technology (Beijing) Co., Ltd.(Registered Brand CBVAC), founded in 2002, is national new-high technology enterprise, the Chinese Vacuum Association key enterprise specialized in vacuum products development, design, production, sales and service. We took the major projects task from MOST, the intelligent digital workshop from NDRC, technology upgrading from MIIT and so on.
 CBVAC posses various series of vacuum valves, vacuum pumps, vacuum bellows, vacuum flange connectors and customized chamber processing, vacuum system integration and other vacuum products. The industry belongs to high-end equipment manufacturing industry. The vacuum products and technologies are widely applied in new energy, new materials, aerospace, semiconductor, IC equipment and other fields, also we design and manufacture products in the vacuum technology application fields from universities and scientific research institutions.
Our product Range :
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