China OEM Hot Search 2.83-4.05m Rotary Jumbo Drill Rig for Underground Mining near me factory

Product Description

Product Description

The Main Features:

Applicable for blast hole drilling of underground mining, tunneling and bolting operation.
Function Configuration:
Equipped with environment friendly diesel engine to drive tramming and positioning, electrical motor to drive drilling operation, the dual power configuration allows the rig for fast maneuverability and zero emission with very low noise level of drilling operation. The rig is also equipped with high efficiency hydraulic drifter and heavy duty floating and steady combo boom drilling system, with high accurate automatic horizontal positioning and 360 rotating function, which allows the rig to finish 35 m2 face drilling coverage in 1 operation and also can be used for bolting and many other applications.
With high pressure and closed cycle hydraulic system to drive 4 wheels, for 2 speed transmission while moving forward and backward. With engine non stop when overloaded and climbing slopes, the rig will automatically adjust to lower speed with higher torque output. The 2 loop circuitry pedal braking system plus emergency braking device can ensure tramming safety. With only width of 1.65 m of ultra-narrow articulated heavy duty chassis design, the minimum turning radius is 2.8m with 14 degree climbility and tramming speed up to 12 km/h and the rig aims to drill blast holes in underground mines and tunneling excavation as well as bolting operation with professional narrow design in mind.

Control System:
With automatic hole collaring and percussion shutdown function after the drilling procedure completed plus 3 seconds delay to flush the hole bottom, the rig returns automatically to start mode. With AUTO shutdown protection function of the drifter and the rock drill tools, the rig will lubricate the drifter when rock drilling idle and when water flushing on. Advanced combo automatic anti-jamming system can adjust the rotation, feed and percussion pressure automatically according to the rock condition to ensure rock drilling operation always in optimum mode.
Intelligent Technology:
With CAN technology, modular layout of all electric system, and simplified circuitry increase reliability. The display panel in the canopy shows all drilling parameters and running state of the rig with automatic alarms and warnings, and data storage, to allow 1 man operation easy and trouble shootings simplified.

Product Features:
1. Feed: Heavy duty aluminum alloy feed beam with high anti-bending and torsion-resistant features and high corrosion proof assures long beam service life. The beam surface also is wrapped with stainless steel sheet and PTFE anti-wear CZPT applied between moving parts to further increase service life of the feed system.
2. Rock Drill: HF104M drifter with dual-damping system ensures best rock drilling tools service life. Pressurized oil film protects and lubricates all moving parts surface, decreasing interior wear of the drifter.
3. Safety Canopy: FOPS design for falling objects protection with lifting feature.
4. Large-capacity Cable Reel: Larger-capacity cable reel for 70 m travel without cable disassemble.
5. Positioning legs: Four heavy duty telescopic hydraulic legs for precise positioning and stability during drilling operation.
6. Console: Highly integrated System and 1 place layout design for easier, simpler and more convenient operation.
7. Braking system: Designed and developed specially for underground work environment – the dual braking system, besides front and rear axle wheel wet brakes, with front axle spindle wet brakes and rear axle closed hydraulic parking brakes and emergency shutdown brake added.

Product Parameters

HFJ21 Technical Specifications
Hole range 41-89 mm Rod size (R32, R38,T38) 3090 mm/3700 mm/4310 mm
Drilling depth 2830 mm/3440 mm/4050 mm Maximum working area 35 m²
model HF104M Hydraulic System Pressure 230 bar
Percussion Power 20 kw Rotation Speed 0-388 rpm
Maximum Torque 752 N.m Weight 170 kg
Percussion Frequency 60 Hz    
Pressure 8 bar Capacity F.A.D 0.3 m³/min
Electric Motor
Model GN13081501 Frequency 50 Hz
Power 55 kw Votage 380 V
RPM 1475 r/min    
Feed Mechanism
Total Length 4890 mm/5500 mm/6110 mm Compensated Feeding length 1600 mm
Feeding length 2830 mm/3440 mm/4050 mm Maximum Lifting Force 15 kn/19 kn
Parallel holding Complete Feed Swing Angle ±40°
Boom Extension 1200 mm Feed Pitch Angle +25°/-48°
Boom Swing Angle ±35° Feed Angle +3°/-90°
Boom Lifting Angle +43°/-20° Feed roll-over 360°(Spiral)
Articulated Steering Angle ±41° Approach and Departure Angles 15°
Hydraulic Support Legs 4 Fuel Tank Capacity 63 L
Model 4BTA3.9-C80-II RPM 2200 r/min
Power 60 kw/(at 2200rpm) Torque 380 N.m/(at 1500rpm)
Tramming Speed 12/4.5 km/h Rear Axle Swing Angle ±10°
Maximum Traction Force 32 kn Ground Clearance 260 mm
Climbing Angle 14°    
Electric System
Start Type Star / delta unloading start Working Lights 2×40 W,24 V
Voltage 380 V Tramming Lights 8×70 W,24 V
Battery 2×12 V,105 Ah Cable Reel, Diameter 1100 mm
Water Flushing System
Flow 66 L/min Minimum Water Inlet Pressure 2 bar
Pressure 12 bar ; ;
Weight and Dimensions
Weight ≤12000kg Tramming Turning Radius Inner R 2800 mm,Outer R 4900 mm
Dimensions ( L x W x H) 10920mmx1650 mmx2100 mm/2800 mm Working Coverage Area : Width x Height 6600 mmx5670 mm(5600 mmx5390 mm)

Working Site

Company Profile



1. Are you a trading company or a manufacturer?

We are a professional manufacturer. Our factory mainly produces water well drilling rigs, core drilling rigs, down-the-hole drilling rigs, pile drivers, etc. The products have been exported to hundreds of countries around the world and enjoy a high reputation all over the world.

2. How is the quality of your machine?
Our products pass strict quality inspections before they leave the factory to ensure that they are qualified before they are shipped.

3. How to inspect the goods?
1) Support customers to come to the factory for on-site inspection.
2) Support customers to designate third-party companies to inspect goods.
3) Support video inspection.

4. Do you have after-sales service?
Yes, we have a dedicated service team that will provide you with professional technical guidance. If you need, we can send our engineers to your workplace and provide training for your employees.

5. How about quality assurance?
We provide a one-year quality guarantee for the main machine of the machine.

6. How long is your delivery cycle?
1) In the case of stock, we can deliver the machine within 7 days.
2) Under standard production, we can deliver the machine within 15-20 days.
3) In the case of customization, we can deliver the machine within 20-25 days.

Standard Length Splined Shafts

Standard Length Splined Shafts are made from Mild Steel and are perfect for most repair jobs, custom machinery building, and many other applications. All stock splined shafts are 2-3/4 inches in length, and full splines are available in any length, with additional materials and working lengths available upon request and quotation. CZPT Manufacturing Company is proud to offer these standard length shafts.

Disc brake mounting interfaces that are splined

There are 2 common disc brake mounting interfaces, splined and center lock. Disc brakes with splined interfaces are more common. They are usually easier to install. The center lock system requires a tool to remove the locking ring on the disc hub. Six-bolt rotors are easier to install and require only 6 bolts. The center lock system is commonly used with performance road bikes.
Post mount disc brakes require a post mount adapter, while flat mount disc brakes do not. Post mount adapters are more common and are used for carbon mountain bikes, while flat mount interfaces are becoming the norm on road and gravel bikes. All disc brake adapters are adjustable for rotor size, though. Road bikes usually use 160mm rotors while mountain bikes use rotors that are 180mm or 200mm.

Disc brake mounting interfaces that are helical splined

A helical splined disc brake mounting interface is designed with a splined connection between the hub and brake disc. This splined connection allows for a relatively large amount of radial and rotational displacement between the disc and hub. A loosely splined interface can cause a rattling noise due to the movement of the disc in relation to the hub.
The splines on the brake disc and hub are connected via an air gap. The air gap helps reduce heat conduction from the brake disc to the hub. The present invention addresses problems of noise, heat, and retraction of brake discs at the release of the brake. It also addresses issues with skewing and dragging. If you’re unsure whether this type of mounting interface is right for you, consult your mechanic.
Disc brake mounting interfaces that are helix-splined may be used in conjunction with other components of a wheel. They are particularly useful in disc brake mounting interfaces for hub-to-hub assemblies. The spacer elements, which are preferably located circumferentially, provide substantially the same function no matter how the brake disc rotates. Preferably, 3 spacer elements are located around the brake disc. Each of these spacer elements has equal clearance between the splines of the brake disc and the hub.
Spacer elements 6 include a helical spring portion 6.1 and extensions in tangential directions that terminate in hooks 6.4. These hooks abut against the brake disc 1 in both directions. The helical spring portion 5.1 and 6.1 have stiffness enough to absorb radial impacts. The spacer elements are arranged around the circumference of the intermeshing zone.
A helical splined disc mount includes a stabilizing element formed as a helical spring. The helical spring extends to the disc’s splines and teeth. The ends of the extension extend in opposite directions, while brackets at each end engage with the disc’s splines and teeth. This stabilizing element is positioned axially over the disc’s width.
Helical splined disc brake mounting interfaces are popular in bicycles and road bicycles. They’re a reliable, durable way to mount your brakes. Splines are widely used in aerospace, and have a higher fatigue life and reliability. The interfaces between the splined disc brake and BB spindle are made from aluminum and acetate.
As the splined hub mounts the disc in a helical fashion, the spring wire and disc 2 will be positioned in close contact. As the spring wire contacts the disc, it creates friction forces that are evenly distributed throughout the disc. This allows for a wide range of axial motion. Disc brake mounting interfaces that are helical splined have higher strength and stiffness than their counterparts.
Disc brake mounting interfaces that are helically splined can have a wide range of splined surfaces. The splined surfaces are the most common type of disc brake mounting interfaces. They are typically made of stainless steel or aluminum and can be used for a variety of applications. However, a splined disc mount will not support a disc with an oversized brake caliper.

China OEM Hot Search 2.83-4.05m Rotary Jumbo Drill Rig for Underground Mining     near me factory China OEM Hot Search 2.83-4.05m Rotary Jumbo Drill Rig for Underground Mining     near me factory