About Changzhou Rongsui Oil-Press Equipment Co., Ltd. - Pressure Sensors Supplier in China

China‑based Changzhou Rongsui Oil‑Press Equipment Co., Ltd. lists five distinct pressure‑measurement products in its current catalogue. The active product count of 5 includes two variants of Hirschman‑type pressure sensors, an aviation plug‑in pressure sensor, two digital‑display pressure sensors that output 4‑20 mA on a two‑channel switch, and a pressure switch with a stainless‑steel joint and plastic shell. All stainless‑steel items carry HS code 9026.20, while the pressure switch is classified under HS code 8536.50. The catalogue aligns with the company’s broader categories such as pressure vessels, copper pipe fittings and temperature controllers, indicating a focus on industrial measurement and control equipment.

Product Range and Specialties of Changzhou Rongsui Oil-Press Equipment Co., Ltd.

The listed products are manufactured primarily from stainless steel, typically grades 304 or 316 for corrosion resistance in industrial environments. Hirschman‑type and aviation‑plug sensors usually offer accuracy classes of ±0.25 % to ±0.5 % of full scale and pressure ranges from 0.1 MPa up to 10 MPa, depending on model. Digital display sensors combine the same stainless‑steel housing with an electronic module that provides a 4‑20 mA current loop, a standard output for PLC integration, and a two‑channel switch for redundancy. The pressure switch (HS 8536.50) integrates a stainless‑steel joint with a plastic shell, commonly used for on‑off control in pneumatic and hydraulic circuits.

Trade and Export Information - Changzhou Rongsui Oil-Press Equipment Co., Ltd.

Export of pressure sensors from China typically targets automotive manufacturers, aerospace OEMs, and process‑automation firms in Europe, North America and Southeast Asia. HS chapter 90 (9026.20) covers measuring instruments, while 8536.50 falls under electrical apparatus for switching. Buyers usually request CE marking, IECEx certification for explosion‑prone areas, and ISO 9001 quality‑management evidence from Chinese suppliers. Standard shipping practices involve anti‑static packaging, palletisation for 20‑foot containers (approximately 150 - 200 units per container) and Incoterms such as FOB or CIF to major ports like Shanghai or Ningbo. The Chinese export environment for precision sensors emphasizes compliance with the EU Machinery Directive and US FDA (if used in medical devices) when applicable.

Sourcing from Changzhou Rongsui Oil-Press Equipment Co., Ltd. - Buyer Guidance

When sourcing from this supplier, request a material test report confirming the stainless‑steel grade and a calibration certificate that specifies the sensor’s accuracy, temperature coefficient and pressure range. Ask for copies of any CE, IECEx or ISO 9001 certificates that the company holds, and verify that the digital display module complies with IEC 60781 for current‑loop outputs. Typical minimum order quantities for stainless‑steel pressure sensors range from 100 to 200 pieces, with lead times of 4 - 6 weeks after receipt of a confirmed purchase order and approved sample. Ensure that packaging details (anti‑static bags, moisture‑resistant pallets) are stated in the order to avoid damage during transit.

What material is used for the pressure sensors listed by Changzhou Rongsui?

All pressure sensors in the catalogue are built from stainless steel, commonly grade 304 or 316, which provides corrosion resistance for industrial use.

Which HS codes apply to the supplier’s pressure‑measurement products?

The Hirschman‑type, aviation‑plug and digital‑display sensors use HS code 9026.20, while the pressure switch is classified under HS code 8536.50.

What output signal do the digital display pressure sensors provide?

Both digital display sensors deliver a standard 4‑20 mA current loop on a two‑channel switch, suitable for integration with PLCs and DCS systems.

What certifications should a buyer verify for these sensors?

Buyers should request CE marking, IECEx certification for explosion‑proof applications, and any ISO 9001 quality‑management certificates the supplier can provide.

What typical accuracy and pressure range can be expected from the Hirschman‑type sensors?

Hirschman‑type sensors usually offer an accuracy of ±0.25 % to ±0.5 % of full scale and cover pressure ranges from 0.1 MPa up to 10 MPa, depending on the model.

How are the sensors packaged for international shipment?

Standard packaging includes anti‑static bags, moisture‑resistant pallets and shrink‑wrap, allowing efficient loading into 20‑foot containers (approximately 150 - 200 units per container).

What is a common lead time and MOQ for these stainless‑steel sensors?

Typical lead times are 4 - 6 weeks after order confirmation, with minimum order quantities ranging from 100 to 200 units per product variant.

Can the pressure switch replace HYDAC components?

The catalogue notes that the digital display pressure sensor can replace HYDAC units, but buyers should compare electrical specifications and mounting dimensions before substitution.