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Steel casting pump impellers
  • Steel casting pump impellers
  • Steel casting pump impellers
  • Steel casting pump impellers
  • Steel casting pump impellers
  • Steel casting pump impellers
Payment Type: L/C,T/T
Terms of Trade: FOB,CFR,CIF
Min. Order: 1 Piece/Pieces
Delivery Time: 30 Days
Packaging: bulk package and bulk vessel transportation container package and container transportation
Brand: UniSite
Transportation: Ocean,Land
Place of Origin: china mainland(zhejiang)
Certificate: CCS/ISO/BV
Basic Info

Model No.: USA-225

Product Description

Since impellers have no large blades to turn, they can spin at much higher speeds than propellers. The water forced through the impeller is channelled by the housing, creating a water jet that propels the vessel forward. The housing is normally tapered into a nozzle to increase the speed of the water, which also creates a Venturi effect in which low pressure behind the impeller pulls more water towards the blades, tending to increase the speed.Steel casting pump impellers


Wear prevention

The fan impeller wear and abrasive compositions, particle size, concentration, shape, impact velocity and impact Angle, the chemical composition, properties, temperature and humidity of the gas and other factors. The impeller internal gas flow nonuniformity and accelerated wear and tear. As the measures to prevent the impeller wear: one is to reduce the dust into the fan and the corrosive gas, therefore must transform to fan operation system;2 it is to try to make local wear tend to be more uniform wear, this needs to raise the wearability of the impeller. If improve the wear resistance of the impeller can use high hardness and good abrasion resistance material. This not only can bring difficulties to impeller manufacture process, but also from an economic point of view is not reasonable. Therefore improve the quality of the surface of the fan impeller, the impeller wear serious parts or spray surfacing welding (spraying) wear-resisting layer and on the blade adds a layer of lining board in order to achieve wear-resisting is an economic and reasonable solution.


Coating wear coatings

Main wear coating resin anticorrosion coating wear-resisting, anti-corrosion wear-resistant coating, rubber quartz water glass and ceramic anticorrosive wear-resisting material, etc.

890 wear-resisting of compound is a kind of used to repair and protection from abrasion on the surface of the metal ceramic composite materials, the wear resistance of the compound and the binding force of the parent metal are also good. But 890 wear-resisting of compound coating thickness must achieve 6 mm thick or more, the more strict with some narrow port or start of the rotor is inappropriate, likewise, in the blade and add a layer of wear resistant lining board to solve the fan impeller wear also exists such problems.


Leaf blade surface welding

Surfacing is to choose a certain surfacing electrode (or wire), manual or automatic welding arc surfacing at the site of the blade is easy to wear, to improve the quality of blade surface, in order to protect the blade and improve the blade life. Blade D217 is generally selected surfacing electrode, D237, D317B, D707 and D717 D217 D237 and surfacing metal belongs to the hippocampus steel, have certain ability to resist wear and tear, but welding cracks tend to be larger.D317B surfacing materials are composed of a tungsten carbide (WC) particle size distribution in a surfacing welding alloy, in the composition of the metal substrate with WC melting point and hardness is very high, so the weld metal and high hardness and impact resistance, hardness HRC 60 or higher, surfacing metal cracks tend to be smaller.


Surface spray welding (coating)

Spray welding process with heat source to the fusion at the end of the gold powder injection and melting on the workpiece surface and make it form a dense spray welding layer process. The powder spray welding wear-resisting is essentially the Ni - Cr - B - Si series of nickel base powder spray welding. Their spray welding layer basic organization is Ni - Cr - Fe solid solution, at the same time there are a large number of boron compounds and tungsten carbide, the WC particles uniformly distributed in Ni base spraying layer, the particles are uniform and discontinuous, but can form a hardness of HRC70 skeleton. Ni base material is filled in the skeleton, being abrasive erosion, can withstand highly abrasive wear. Spray welding surface hardness HRC55 ~ 70, the basic ingredients for + WC35 Ni60 %.


With professionalism, vitality, innovation, respect, team spirit, UniSite culture (corporate values, corporate philosophy and behavior shaping) is continuously developing, along with our company from its foundation.

pontoons


pontoon



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Unisite Group Ltd.

  Profile

UniSite group was established in 2008 in Ningbo - Chinese second largest port, dredging relevant products manufacturing & supplying since 2005, that is characterized by visible leadership, vitality, innovation, long-term vision and a sound financial position.

As an international partner, we are specialized in providing comprehensive service of dredging, land reclamation, offshore projects, marine engineering, piling works, municipal engineering, mechanical engineering, construction machinery, oilfield projects and environmental remediation projects.

The group has a perfect managing system and our staff who are professional in technology are committed, passionate, efficient. Thanks to the knowledge, the experience and the skills of our work team, we are able to offer our client best possible and most sustainable solutions to their requirement. We are one of the leading steel parts and service providers for dredging and marine engineering in China.

UniSite culture consists of corporate values, corporate philosophy and behavior shaping, which is the core of responsibility and breakthrough. Based on this core, with professionalism, vitality, innovation, respect, team spirit, UniSite culture is continuously developing, along with our company from its foundation.


Activities and projects

1)UniSite`s first core activity: serve for dredging and marine projects

Provide service and relevant parts for dredgers, including dredger construction, repairing and maintenance.

Provide items for dredging, land reclamation, offshore, marine engineering, piling works, municipal engineering, oilfield projects and environmental remediation projects.

Product range:

Steel Structures and Pipes

Casting and Pump parts

Machining Parts whatever big or small

Piling and Parts

Product list:

- Pontoon; Floating platform; Marine work platform; Buoy; Float; Fender

- Anchor box system;

- Sinker pipe line; Shore pipe line; Floating pipe line; Piling pipe; Sheet pile;

- Y piece; Bend; Fall pipe; Ball joint pipe;

- Rubber hose;

- Small dredger: standard cutter suction, bucket, grab, shovel stone, mud and stone construction

- Spud; CSD Spud;

- Suction pipe; Arm piece; Jet pipe;

- DW pipe; Wear Resistant Pipe; Structure pipe; Shipping building pipe;

- Pump; Pump spare parts(impeller, shell, casing, liner, cover)

- Branch casting pipe; Casting bend;

- Loading box; Bottom door; Overflow; Fender frame; Bow coupling; Anchor; Hopper panel; Basket; Bucket; Clamp ring; Drag head; Cutter head; Cutter ladder;

- Sliding piece; Gantry; Turning gland; Chute flap; Kingpin; Cutter platform; Water box; Bow coupling; Anchor; Hopper panel; Hopper door; Basket; Bucket; Bucket wheel; Clamp ring; Close plate; Gantry;Dredge gate valve; Valve body;

- Mooring system(mooring rope, mooring bollard, mooring winch, mooring fairlead, anchor windlass, chain stopper, roller fairlead, wheel fairleader, panama chock, marine mooring rope reel, anchor releaser, marine shutter, pipe clamp)


2) UniSite`s second core activity: serve for machinery and automobile projects

Provide service and relevant parts for mechanical engineering, construction machinery, agricultural machinery, port hoisting machinery, metallurgy, automobile, chemical, marine machinery.

Product range:

Big Machining(machining center, boring and milling, lathe)

Small Machining(cnc, milling, grinding)

Casting (sand, investment)

Die casting

Forging

Stamping and Bending

Product list:

- Machinery Products(like Wind Turbine Generate System Hub, Wind Power Bearing Block, Punching Machine Sliding Block, Punching Machine, diesel power generator base, die casting machine base, injection molding machine base, punch, tank, pump parts, accumulators parts, valve parts, construction parts, agricultural parts etc.)

- Machinery Products

- Auto Products

- Shipping building Products

- Medical Products

- Oil Products


Project


With about 10 years` experience, now our products and service are involved in many projects all over the world. Like:

1)Palm islands construction, World thousand islands construction, Australian coastline and port expansion, Gladstone project construction, Brisbane airport project construction, the Vietnamese government`s port expansion, Panama coastline expansion, Railway tunnel Schuman-Josaphat construction(Belgium), World`s first formal floating sea restaurant construction(Darling Harbour, Sydney), New Suez Canal project construction, Municipal tunnel projects construction(Alger)--




Production and equipment

Equipment list:


pipeline production equipment

machining equipment

welding equipment

bending press equipment

rolling equipment

shears equipment

CNC plasma cutting equipment

advanced paint room and equipment

auxiliary equipment



Technology and Quality

Offering our client best possible and most sustainable solutions to their requirement. Production procedure

Step1: Drawing and technical requirement analysis, production lofting;

Step2: Material cutting, trimming, groove, cleaning, bending, rolling, dimension & NDT inspection

Step3: From part assemble to whole assemble with accurate template and platform, dimension & NDT inspection, welding, dimension & NDT inspection;

Step4: Casting, forging, stamping, machining if necessary

Step5: Final dimension & NDT inspection;

Step6: Surface treatment;

Step7: Package, Loading and Lashing when delivery;

UniSite have a perfect managing system and quality control system which from initial work.

ISO9001-2008/CCS; BV manufacturer capability qualification.

Taken part in the CHINA DREDGING ASSOCIATION

Quality, health, safety and environment (QHSE)

Production guidelines

In-house safety training to our staff

Checking all the production equipment periodically

Preventing pollution, accidents and health hazards, auditing



In order to perform comprehensive service and relevant items to clients' satisfaction, UniSite knows the importance of advanced technology, equipment, quality and continuously invests in advanced production base and equipments. The group has a perfect managing system and quality control system which from initial work, to process control, to final control, forming the whole process traceability with a good command of quality and production schedule.


We are able to offer our client best possible and most sustainable solutions to their requirement.


Company Info
  • Company Name: Unisite Group Ltd.
  • Representative: Yu ZHUOFANG
  • Product/Service: Dredging Parts , Marine Engineering And Parts , Ship Building And Parts , Machining Parts , Casting And Pump Spare Parts , Piling Parts
  • Capital (Million US $): 1,500,000
  • Year Established: 2008
  • Total Annual Sales Volume (Million US $): US$10 Million - US$50 Million
  • Export Percentage: 91% - 100%
  • Total Annual Purchase Volume (Million US $): US$1 Million - US$2.5 Million
  • No. of Production Lines: 6
  • No. of R&D Staff: 5 -10 People
  • No. of QC Staff: 11 -20 People
  • OEM Services Provided: yes
  • Factory Size (Sq.meters): 10,000-30,000 square meters
  • Factory Location: JiaoTou industry park, LiuHeng island, Putuo district, Zhoshan
  • Contact Person: Mr. Kevin Mei
  • Tel: 86-574-87053650
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