High Precision Machining is defined as a process of changing the dimensions or the performance of workpiece with machining facilities.
According to the temperature of the workpiece while in machining, high precision machining can be divided into cold working and hot working. Usually, machining under indoor temperature, and won't change cause chemical change or phisical phase change is named cold working. On the other hand, if under temperature, higher or lower than room temperature, which will lead to chemical changes or phase changes, it will be called as hot working.
For high precision machining, the machining tolerance can be up to 0.0001-0.001mm, the surface finish Ra can be 0.02-0.1um.
Machining precision is to describe the actual geometrical parameter of the part after machining, such as the size, the form, the position, comparing with the theoretical geometry parameter. The difference from these two parameters is the machining tolerance. The number of the difference show the machining accuracy, the bigger, the lower of the machining precision, the smaller, the higher machining precision.
High Precision Machining,Aluminum Alloy Diecasting,Precision Parts,Machining Parts,Malaysia Zinc Die Casting NINGBO ZHENHAI BOLANG METAL PRODUCT FACTORY , https://www.aldiecastings.com
gin: Zhejiang, China (Mainland), Hangzhou, China
Brand Name: Xinglong
Model Number: XS series, XS09D070J21
Theory: Rotary Pump
Structure: Screw Pump
Usage: Oil
Standard or Nonstandard: Nonstandard
Power: Electric
Pressure: High Pressure
Fuel: Diesel
Capacity Range: 0.5-1000 m3/h
Application: Maritime
Pressure Range: 0-4.0MPa
Pump Type: Positive displacement pump
Material: Carbon steel, cast iron, bronze, stainless steel 304/316, duplex SS
Certification: CE, ISO9001,CCS
Heating fuction: Support
Cooling fuction: Support
Relief Valve fuction: Support
Packaging Details: Plywood packing
Delivery Detail: Usually within 20 working days after the contract signe
Specifications
1. suitable for various medium without solids or with fine solidsÂ
2. CE, ISO and CCS certificatesÂ
3. can be heated or cooledÂ
Xinglong double suction twin screw pumps are self-priming, double ended positive displacement pumps. They can handle virtually any non-homogeneous fluid, regardless of viscosity, lubricity or abrasiveness e. g. seawater, bitumen, molasses, lime, acid, caustic solution or hydrocarbon.
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Performance
Capacity
 Up to 1200 m3/h
 Pressure
 Up to 4.0MPa (40Bar)    Â
 Temperature                   Â
 -50-320°C
 Viscosity
 1-3×106mm2/s
Oil production
 Petrochemical industry    Â
 Ship building
 Offshore production
 Power stations
 Refineries
 Colors and Paints Industry
 Tank transfer
 Bitumen, asphalt, pitch
 Fire foam
 Marine
 Drinks
 Food
 Milk products
 Confectionery
 Brewery
Features & BenefitsÂ
•   Wide range of applications
•   Self-priming
Direct drive without speed-reducer possible
•   Compact construction
•   Change of pumping direction - simple
•   Pumping elements - simple to replace
•   Easy maintenance
•   For almost all media and fluids
•   High viscosities possible
•   Low noise level
•   Dry running possible
•   Constant flow on varying pressures and volumes
•   Very good suction performance up to NPSH 1 - 1.5 m/3 - 5 feet
•   Engineered 2-piece shaft and screw construction
Inner structure:
Quick Details
gin: Zhejiang, China (Mainland), Hangzhou, China
Brand Name: Xinglong
Model Number: XS series, XS09D070J21
Theory: Rotary Pump
Structure: Screw Pump
Usage: Oil
Standard or Nonstandard: Nonstandard
Power: Electric
Pressure: High Pressure
Fuel: Diesel
Capacity Range: 0.5-1000 m3/h
Application: Maritime
Pressure Range: 0-4.0MPa
Pump Type: Positive displacement pump
Material: Carbon steel, cast iron, bronze, stainless steel 304/316, duplex SS
Certification: CE, ISO9001,CCS
Heating fuction: Support
Cooling fuction: Support
Relief Valve fuction: Support
Packaging Details: Plywood packing
Delivery Detail: Usually within 20 working days after the contract signe
Specifications
1. suitable for various medium without solids or with fine solidsÂ
2. CE, ISO and CCS certificatesÂ
3. can be heated or cooledÂ
Xinglong double suction twin screw pumps are self-priming, double ended positive displacement pumps. They can handle virtually any non-homogeneous fluid, regardless of viscosity, lubricity or abrasiveness e. g. seawater, bitumen, molasses, lime, acid, caustic solution or hydrocarbon.
Â
Â
Performance
Capacity
 Up to 1200 m3/h
 Pressure
 Up to 4.0MPa (40Bar)    Â
 Temperature                   Â
 -50-320°C
 Viscosity
 1-3×106mm2/s
Oil production
 Petrochemical industry    Â
 Ship building
 Offshore production
 Power stations
 Refineries
 Colors and Paints Industry
 Tank transfer
 Bitumen, asphalt, pitch
 Fire foam
 Marine
 Drinks
 Food
 Milk products
 Confectionery
 Brewery
Features & BenefitsÂ
•   Wide range of applications
•   Self-priming
Direct drive without speed-reducer possible
•   Compact construction
•   Change of pumping direction - simple
•   Pumping elements - simple to replace
•   Easy maintenance
•   For almost all media and fluids
•   High viscosities possible
•   Low noise level
•   Dry running possible
•   Constant flow on varying pressures and volumes
•   Very good suction performance up to NPSH 1 - 1.5 m/3 - 5 feet
•   Engineered 2-piece shaft and screw construction
Inner structure:
Xinglong Double Screw Pumps for Oil and Other Viscous Medium
Model NO.: XS series twin screw pump
Trademark: Xinglong
Transport Package: Plywood Packing
Origin: China
HS Code: 8413604090
Model NO.: XS series twin screw pump
Trademark: Xinglong
Transport Package: Plywood Packing
Origin: China
HS Code: 8413604090
Quick Details