Yishan: industrial air rooms and engineering air supply from Xianyang
Shaanxi Yishan Compressor operates in the Qindu high-tech area of Xianyang. Its company account dates its establishment to 1993 and identifies the Yishan and 艾尔维特 brands, with screw compressors, pressure vessels and air-purification equipment in its portfolio.
The company's name also appears in Shaanxi's 2022 technology-based SME entry list. This is dated enterprise identity evidence, not certification of a particular compressor or current mine approval.
The product literature describes research and development and cooperation with Xi'an Jiaotong University. Confirm the offered equipment and inspection plan directly for the order; those company statements do not establish an audited production capacity.
First decision · power and site
Diesel outdoors, electric in the air room, model-specific approval at the mine
SGF · engine-driven engineering air
For drilling and outdoor tools, start with actual use-point pressure and simultaneous airflow. Select the engine, fuel, altitude/cooling and site movement or fixed mounting together.
Specific example: SGF-56/9 China IV is published at 56 m³/min, 0.9 MPa and 412 kW diesel drive. Its family-table row is two-stage and fixed.
SGF drive and destination requirements →YSBP · electric PM variable-speed air
For an industrial air room, match the peak/low-load profile and pressure band, electrical supply, ventilation and treatment train. A motor rating alone cannot predict whole-package energy consumption.
Specific example: YSBP-75HP is listed at 10 m³/min, 0.8 MPa and 55 kW motor power; the table specifies single-stage direct drive.
YSBP models and air-room scope →
DLGF · electric two-stage mining series
This family uses a PM electric motor, variable-frequency control and two-stage compression. Mining application does not make it a diesel machine.
DLGF23/8-110B and DLGF50/8-280B provide different model-specific airflow and motor selections at the published 0.8 MPa point. Establish the mine type, installation zone and current approval for the exact unit.
Yishan also markets mobile electric tunnel machines separately. A general tunnel description does not establish hazardous-mine approval.
DLGF ratings and mining project inputs →Read each operating point with its own power column
These examples are transcribed from Yishan's original tables and dedicated model titles. Flow is labeled m³/min; full FAD reference/test conditions and the MPa gauge/absolute basis must be agreed in the offered datasheet. The values below are separate selections.
| Model / drive | Flow | Pressure | Drive rating / architecture |
|---|---|---|---|
| SGF-56/9 China IV · diesel | 56 m³/min | 0.9 MPa | 412 kW diesel · two-stage · fixed |
| YSBP-10HP · electric | 1 m³/min | 0.8 MPa | 7.5 kW motor · single-stage · direct |
| YSBP-75HP · electric | 10 m³/min | 0.8 MPa | 55 kW motor · single-stage · direct |
| YSBP-20J · electric | 1.6 m³/min | 1.6 MPa | 15 kW motor · single-stage · direct |
| DLGF23/8-110B · electric | 23 m³/min | 0.8 MPa | 110 kW motor · two-stage · direct |
| DLGF50/8-280B · electric | 50 m³/min | 0.8 MPa | 280 kW motor · two-stage · direct |
A mining series needs model and site approval together
What the manufacturer describes
The mining literature discusses KA-marked equipment for non-coal underground and metal/non-metal mining. It describes PM drive, variable-frequency PLC control, filtration and two-stage compression.
The certificate collage cannot establish readable current numbers, validity or coverage of every offered model. A KA image or general tunnel application is not a universal coal-mine explosion-proof approval.
What to obtain for the actual purchase
- Exact model, manufacturer and manufacturing address on the current certificate
- Certificate number, issuing body, validity and approved equipment scope
- Mine type, installation zone and environmental/hazardous-area requirements
- Destination acceptance and matching motor, controller and electrical protection documents
DLGF installation examples: outlets and enclosure dimensions
The table lists DLGF23/8-110B with DN65 and 2400 × 1500 × 1760 mm, and DLGF50/8-280B with DN100 and 3500 × 2000 × 2100 mm. These are published length × width × height values, not approved shipping, lifting or foundation drawings. Obtain current drawings, maintenance clearances and access/transport limits before site preparation.
Turn the application into a complete air-supply enquiry
1 · Describe the air demand at the tool or process
Required pressure and simultaneous airflow, peak/low-load periods, hose/piping losses, operating hours and acceptable air quality.
2 · Name the site and power arrangement
Outdoor drilling: fuel, engine and emissions acceptance, altitude/cooling and movement. Industrial air room: voltage/frequency, controls and ventilation. Mine: exact installation zone, approval scope and electrical protection.
3 · Divide the compressor from the rest of the package
Confirm receiver, dryer/filters, piping, condensate handling, safety devices and outlet connections separately. Ask for actual airend/motor/engine identifiers, current inspection plan and spare-parts schedule.
4 · Agree tests and handover
Pressure/flow reference conditions, witnessed performance and safety checks, operating manuals, maintenance access, commissioning responsibilities and destination support arrangements.
Prepare a Yishan enquiry with the drive and site identified
State SGF, YSBP or DLGF, the intended use, actual duty and the documents needed at delivery.
Prepare the Yishan air-supply enquiry →Questions before choosing a Yishan machine
Is the DLGF mining family diesel driven?
No. The manufacturer's table identifies electric motor power, PM variable-speed control and two-stage compression. Select electrical supply and mining approval for the actual model.
Does China-IV wording establish destination emissions approval?
No. Obtain the exact engine identity and approval documents accepted by the destination. A domestic designation alone does not establish export compliance.
Can I compare the listed m³/min figures directly with a supplier's FAD?
Agree the volume reference and test conditions first, together with pressure basis and ambient/altitude. The original Yishan tables do not supply the complete reference conditions.
Does variable speed guarantee the published savings percentage for my plant?
No. Request package input and part-load performance over your actual demand profile, usable control range and agreed operating pressure.