Name: China JK / DJK Series Mine Local Ventilation Fan Manufacturers Suppliers Factory - Qiyue Fan
Brand: Qiyue Fan
SKU: 303877280

JK / DJK Series / Mine Local Ventilation

JK / DJK Series Mine Local Ventilation Fan

JK / DJK series mine local ventilation fans are designed for mine roadway excavation, stope ventilation, power scraper roadway air supply, tunnel construction and underground engineering projects requiring ducted local air delivery. The range combines compact installation, flexible movement and multiple pressure levels for different ventilation distances.

View Performance Data Selection Information

Available Series

JK / DJK

Single-stage / counter-rotating

Air Delivery

80–600 m

Depends on model and duct system

Listed Airflow

0.9–17.8 m³/s

Reference model range

Listed Pressure

475–3776 Pa

Reference pressure range

On This Page

Selection Focus
Duct Diameter
Duct Distance
Airflow
Pressure

01 / Engineering Overview

Local Duct Ventilation for Underground Roadways and Working Areas

JK / DJK series is designed for local ventilation rather than the primary mine ventilation network. The fan delivers air through ventilation ducting to a defined underground working area such as a roadway heading, stope access or construction face.

Because excavation conditions and duct lengths change as work progresses, the series focuses on practical local air supply, compact arrangement and the ability to match different duct-system resistance levels.

01 / LOCAL AIR SUPPLY

Deliver Air to the Working Zone

The fan works with ventilation ducting to supply air to roadways, faces and underground work sections.

02 / DUCT RESISTANCE

Pressure Must Match the Duct

Longer air-delivery distance and higher duct resistance require greater pressure capability.

03 / MOBILITY

Adapt to Excavation Progress

The compact local-fan concept is suitable where the fan position or duct arrangement changes as underground work advances.

02 / Series Structure

JK Single-Stage or DJK Counter-Rotating?

The two configurations serve the same general local-ventilation role but cover different duct-resistance and pressure requirements.

JK SERIES

Single-Stage Local Ventilation

JK models are used for conventional local duct ventilation where the required airflow and pressure can be achieved with a single-stage fan configuration.

Typical review points
Duct diameter
Ventilation distance
Required airflow
Pressure loss

DJK SERIES

Counter-Rotating for Higher Resistance

DJK uses a counter-rotating configuration and should be reviewed when the duct system requires higher pressure capability or has greater ventilation resistance.

Typical review points
Longer duct route
Higher pressure loss
Higher system resistance
Required face airflow

Noise requirement: the series is positioned as a low-noise local ventilation direction, and a silencer can be considered when the project has additional underground noise-control requirements.

03 / Typical Working Areas

Local Ventilation for Roadways, Stopes and Underground Construction

01 / ROADWAY

Mine Roadway Excavation

Local duct air supply for advancing mine roadways and underground working sections where fresh air has to be delivered directly to the work area.

02 / STOPE

Stope Air Guidance

Suitable for stope ventilation and power scraper roadway air induction where local airflow support is required.

03 / SUBLEVEL

Sublevel Mining Access

Can be used for access-roadway ventilation in sublevel mining and other auxiliary underground air-supply positions.

04 / TUNNEL

Tunnel Construction

Applicable to tunnel and underground engineering projects where local air supply is delivered through ventilation ducting.

04 / Duct & Ventilation Distance

Duct Diameter and Air-Delivery Distance Determine the Pressure Requirement

For local mine ventilation, fan performance and the ventilation duct have to be treated as one system. The same airflow requirement can need very different fan pressure when the duct diameter or delivery distance changes.

SELECTION ITEM

AVAILABLE INFORMATION

SELECTION MEANING

Duct Diameter

300–800 mm in the listed representative range

Fan size should match duct size and the required airflow.

Air Delivery

80–600 m according to model

Longer ventilation distance normally increases the pressure requirement.

Fan Structure

JK single-stage / DJK counter-rotating

DJK should be reviewed where higher pressure or greater duct resistance is involved.

Noise Control

Low-noise direction; silencer optional

A silencer can be considered where the project has additional noise requirements.

Shorter Duct Run

A conventional JK operating point may be sufficient when the required airflow can be delivered through a lower-resistance duct system.

Longer Duct Run

As duct length and resistance increase, a higher-pressure JK model or DJK counter-rotating configuration may need to be reviewed.

05 / Performance Parameters

JK / DJK Representative Performance Data

The following data are representative models from the current JK / DJK page information. Final selection should review duct diameter, delivery distance, airflow, pressure loss and installation space together.

SERIES

MODEL

POWER
kW

AIRFLOW
m³/s

PRESSURE
Pa

DUCT
mm

DIST.
m

SIZE O.D. × LENGTH × HEIGHT

JK58

-1 No.3

1.5

0.9–1.4

928–575

300

390 × 486 × 230 mm

JK58

-1 No.4

5.5

2.2–3.5

1648–1020

400

200

520 × 649 × 290 mm

JK55

-1 No.5

4.2–6.6

1726–1324

450

200

600 × 535 × 400 mm

JK56

-1 No.4

0.1–3.4

1275–981

400

150

477 × 682 × 240 mm

JK67

-1 No.5.25

4.0–6.3

3776–2648

500

600

620 × 1364 × 310 mm

JK40

-1 No.7.5

10.9–12.9

1177–883

750

150

824 × 4100 × 455 mm

JK40

-1 No.8

13.2–15.6

1339–1005

800

150

848 × 4350 × 485 mm

DJK50

-No.8

2×30

14.8–17.8

2501–1089

800

220

1340 × 4350 × 485 mm

Data note: the rows above are representative models from the supplied page data. More JK / DJK specifications should be selected according to air-delivery distance, duct diameter, airflow and pressure requirements.

06 / Performance Guide

How to Read JK / DJK Performance Data

A local ventilation fan should not be selected from motor power alone. The duct system and the amount of air that must reach the working area are equally important.

Airflow

The volume of air provided by the fan within the listed operating range.

Pressure

The pressure capability available to overcome resistance in the ventilation duct system.

Duct Diameter

The listed duct size direction should be checked against the project ventilation duct.

Delivery Distance

Shows the reference local air-delivery distance for the listed model.

Power

Motor power follows the selected fan configuration and operating requirement.

Overall Size

Use the listed external dimensions to check available underground installation and connection space.

07 / Selection Logic

What to Send for JK / DJK Local Fan Selection

The most useful starting point is the actual duct ventilation requirement. If pressure is not yet known, provide the duct diameter, route and ventilation distance together with the required airflow.

Application Area

Mine roadway, stope, sublevel access, tunnel construction or other underground local ventilation duty.

Duct Diameter

Provide the actual or planned ventilation-duct diameter.

Air Delivery Distance

Provide the total distance from the fan position to the working area.

Required Airflow

State the required airflow at the local working section.

Required Pressure

Provide calculated pressure if available, or provide the duct information for preliminary review.

Noise Requirement

State whether additional noise-control measures or a silencer need to be reviewed.

Quantity

Provide the required number of fans and the number of working sections to be ventilated.

08 / Product Boundary

JK / DJK Is Not the Same Selection Direction as FBD or FBCD

Several local mine fan families may look similar, but their intended ventilation role and project conditions are different. Confirm the ventilation method before selecting by model.

PRODUCT

MAIN DIRECTION

WHEN TO REVIEW

JK / DJK

General mine and underground local duct ventilation

Roadway, stope, underground engineering and tunnel local air supply

FBD

Explosion-proof press-in local ventilation

Coal-mine projects requiring press-in local ventilation and project-specific explosion-proof configuration

FBCD

Extractive local ventilation

Negative-pressure duct systems and extractive underground ventilation duties

09 / FAQ

JK / DJK Mine Local Ventilation Fan Questions

What is the difference between JK and DJK?

JK is the single-stage local ventilation direction. DJK uses a counter-rotating configuration and is considered where higher pressure or greater duct resistance is involved.

Is JK / DJK a mine main ventilation fan?

No. The JK / DJK series is intended for local and auxiliary underground ventilation where air is delivered to a specific working zone through ducting.

How far can JK / DJK deliver air?

The current page information shows reference air-delivery distances from 80 m to 600 m depending on the model. Actual performance must still be checked against the duct system.

Does a longer ventilation distance always require a larger fan?

Not necessarily. Duct diameter, airflow requirement and pressure loss must be reviewed together. The correct solution may involve a different pressure configuration rather than simply a larger fan.

Can a silencer be supplied?

The current product information states that a silencer can be considered when the project has special underground noise-control requirements.

Should I choose FBD instead for a coal mine project?

If the project specifically requires coal-mine explosion-proof press-in local ventilation, the FBD series should be reviewed separately against the required mine-safety configuration.

When should FBCD be reviewed instead?

FBCD is a different direction intended for extractive local ventilation using negative-pressure ducting.

What information is needed before quotation?

Provide application area, duct diameter, air-delivery distance, required airflow, required pressure, noise requirement and quantity.