Rotor Pump With Rectangle-inlet
We are a world-leading technology-based enterprise
focus on R&D and manufactures non-Newtonian fluid conveying equipment. We
specialize in rotary pumps, homogeneous pumps and grinding pumps. We have
obtained 11 invention Patents and 46 practical patents, and won many national honorary
titles.
Twin-rotor
lobe pump are multi-functional and bi-directional positive displacement pumps,
produced with fine technology. These products use synchronic rotors, driven by
a pair of synchronic gears in the gear box. Transmitted by the main shaft and
the sub-shaft. The rotors move synchronically in counter-clockwise a
directions, which, consequently, varies the pump capacity and builds up high
vacuum capacity and emission pressure. It is particularly suitable to pump
sanitary medium, high-corrosive and high-viscous medium.
Rotor
pump with with rectangle-inlet: The inlet design is V-inlet, enlarge the inlet
diameter, convenient for high viscosity medium enter pump body. Suitable for
high viscosity or thickness medium, such as moon cake filling, bean paste
filling and other medium with poor fluidity.
In
the past 30 years, we dedicate to provide the scientific and professional
solutions in fluid field. In the field of complex fluid transportation, our
company's R&D technology, manufacturing technology, application technology is
at the leading position in the world.
Durrex pumps can be widely used in food, consumer chemical, refined
chemical, paper making, chemical fiber, pharmaceuticals, coating, etc. We will
continue to focus on scientific research and innovation, improve the level of
precision manufacturing, and continuously promote the intelligent development of
fluid transportation industry, to create greater value for global users
Rotor pump with rectangle-inlet, Lobe Pump with rectangle-inlet, Rotary pumps with rectangle-inlet, Rotary lobe pumps with rectangle-inlet, Stainless Steel pumps with rectangle-inlet NINGBO DURREX PUMPS CO.,LTD , https://www.durrexlobepump.com
**Abstract**
Core Tip: This week, the domestic tungsten market experienced a decline. Among the products, ammonium paratungstate (APT) saw the biggest drop, falling by 5,000 yuan/ton. Tungsten iron followed with a decrease of 3,000 yuan/ton, while tungsten powder and tungsten carbide dropped by 2,000 yuan/ton. Scrap tungsten steel fell by about 1 yuan/kg. Meanwhile, tungsten concentrate and sodium tungstate remained relatively stable. On the international front, ferro-tungsten supply remains tight, and although prices are still rising, the pace has slowed. Domestic APT prices have started to stabilize.
**Domestic Market Overview**
1. **Tungsten Concentrate**
This week, the domestic tungsten concentrate market remained flat. The mainstream price for 65% black tungsten concentrate in Zhangzhou and Hunan was around 13–13.3 million yuan/ton, while white concentrate was priced between 129–132 million yuan/ton. Despite last week’s downward trend in the mining sector, Minmetals released its second May price at 138,000 yuan/ton for black concentrate, which helped stabilize merchant sentiment. Although downstream smelting products continued to fall, trading volumes remained low, and the price of tungsten ore held steady above 130,000 yuan/ton. Some miners remain optimistic, but a few companies under financial pressure sold at reduced prices, with the lowest reported at 128,000 yuan/ton. Analysts expect the market to stay stable until June guidance prices are announced.
2. **Ferro-Tungsten**
The price of ferro-tungsten stabilized this week. In Ningbo and Hunan, the 70% base price was maintained at 183–186 million yuan/ton, down 3,000 yuan/ton from last week, while the 80% base price stood at 1.92–1.95 million yuan/ton, down 2,000 yuan/ton. Weak demand and increased competition due to resumed production caused the decline. Merchants remain cautious, and the market is expected to remain stable next week.
3. **Tungsten Chemicals**
APT prices fell sharply this week, with the mainstream price in Hunan dropping to 1.9–1.92 million yuan/ton, down 5,000 yuan/ton. The decline was driven by weak raw material demand, overstocking, and a correction after a rapid price rise. Sodium tungstate prices remained stable, with the 96% grade staying at 13.6–14 million yuan/ton. However, demand from downstream industries like pigments and textiles remained sluggish, and some traders were more active in buying than selling.
4. **Tungsten Products**
Tungsten powder and carbide prices slightly declined this week, with medium-grain tungsten powder trading at 295–297 yuan/kg and tungsten carbide at 293–295 yuan/kg. Prices for tungsten rods and electrodes also fell slightly, with steel-making strips at 310–320 yuan/kg and drawing strips at 360–370 yuan/kg. Despite lower prices, cost support from high tungsten ore prices limited further declines.
5. **Scrap Tungsten**
The scrap tungsten market saw a slight decline this week. Domestic scrap tungsten blades were purchased at 170–173 yuan/kg, while imported blades were priced at 179–182 yuan/kg. Waste drill bits and blocks also saw minor price drops. Overall, prices moved closer to lower levels, with fewer high-priced transactions.
**International Market**
Overseas tungsten prices rose slightly this week. Ferro-tungsten in Rotterdam was quoted at 47.5–48.5 USD/kg, up 0.5 USD from the previous week. APT in Hong Kong was offered at 375–383 USD/ton, while European prices remained between 355–365 USD/ton. With the global economy recovering and the European debt crisis easing, demand is gradually improving, and prices are expected to remain stable or rise slightly next week.
**Market Outlook**
With the domestic steel market continuing to decline, demand for ferroalloys is shrinking. As June guidance prices from Minmetals and other institutions approach, the industry expects them to remain stable. Given the current weakness in downstream demand, it is likely that the tungsten mine market will continue to operate steadily next week. Tungsten chemicals and products that saw early price increases may experience further soft adjustments.