Long Arm Quilt Repair Machine
Pump Cover is a main part of Dredge Pump
dredge pumps ranging from inlet diameters of 400mm up to 1400mm. Our CFD optimized pumps have an excellent suction performance, high efficiency, long wear life and require a minimum of maintenance. The pumps can be delivered in different types of wear resistant materials, and can be executed in a large number of different configurations.
Photo of our Pump Cover:
Single-Walled Dredge Pumps
2)Cast pieces Pump Cover Casting Pump Cover,Heat Pump Cover,Water Pump Cover,Welding Pump Cover Unisite Group Ltd. , https://www.shipsparts.nl
The machine is mainly used for sewing the drop stitch of surface fabric of mattress, graranteeing that the surface is not only beautiful but also fully used. It adopts imported speed adjusting motor. With neat stitch, needle upper returning. Its arm shaft and hook drive shaft are characterized with entirety structure. 
Technical data:Â
Machine head span
 780mmÂ
Max. Sewing thickness
 40mm(JS-1)/70MM(JS-2)
Sewing speed
 120 - 1500 s. P. M
Presser foot lifter range
20mm
Motor power
 560W
Operating air pressure
0.5 -Â 0.8MPa
Our Services:
1. After-sale service:
  Installation & Commissioning: The seller can provide the installation, commissioning and training
   service in buyer's factory, while the buyer needs to pay for VISA application, air ticket, accommodation,
  (if necessary) interpreting fee for seller's technician.
2. Warranty:For the machine above,the seller provides one year warranty starting from the moment
the seller dispatches the machines. For the detailed guarantee period of each part, please refer to the operation manual.Wearing parts,consumption material and the damage incurred by the buyer's incorrect operation are out of warranty range.
FAQ:
Voltage: Please pay attention to your country's voltage,
China is 220v 1phase 50Hz / 380v 3phase 60Hz. If different, please inform us in advance.
Our company:Â
Nanjing Square Mattress Machinery Co., Ltd. (also named Nanjing Sifang MattressÂ
Machinery Factory) was established in 1990. We are a specialized manufacturer ofÂ
complete line mattress & sofa spring equipment. Our present products cover 10 seriesÂ
and more than 60 models. Our present factory covers an area of 35,000sqm with aÂ
14,000-square-meter workshop.
Presently, our company is running strictly in terms of ISO90001:2000 quality system. OurÂ
products sell well not only in China but also far in Europe, South America, North America,
 Australia, the Middle East, Asia, Africa, and other countries and regions all over the world. Our products make us win customers' trust and recognition widely. Our annual exportÂ
volume is increasing rapidly. Any of your contacts or visits is sincerely welcomed. We lookÂ
forward to making cooperation with you in the near future!  Â
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single-walled dredge pumps are `all-round` and used in all types of dredgers. They are designed for typical pump pressures up to 16 bars, and can be excecuted with different types of pump seals such as: stuffing box, mechnical seal or hydro seal.
Double-Walled Dredge Pumps
double-walled dredge pumps are specially designed for high pressures, starting typically from 16 up to 30 bars. The double-walled pump design is based on the concept of pressure compensation between the outer-, and inner-pump casing. All types of configurations are possible such as 3,4 and 5 vane impellers, and casted or welded outer-casings.
Underwater Dredge Pumps
The underwater dredge pumps are used in cases where the highest possible suction performance is required. They basically have the same possibilities and options as our single-walled pumps have. Depending on our clients' preference they are executed with direct motor drive or integrated gearbox, with or without pressure compensation.
Casting
1)Pattern
Collection in our storehouse. Inspection of pattern in our workshop.
Pieces cast with wrong pattern due to insufficient inspection of pattern are rejected.
Free delivery of pattern (in good condition) with last cast piece of order to our client or stored in our workshop for future new production but with time-limited or quantity-bound.
Material
The use of the cast pieces requires other chemical analysis and mechanical properties (unless otherwise mentioned on drawing).
Cast pieces group S (Wear) :
Impellers, pumphousings, dredge lines (bends, branchpipes, etc.)
Cast pieces group C (Construction) :
Other pieces as pivots, rod eyes, wire sheaves etc.