ZDFJ76A2
Twin-boom Face Drilling Jumbo
ZDFJ76A2 is a twin-boom hydraulic face drilling jumbo for underground mining and tunnelling. Electric power drives drilling while a diesel engine powers tramming. Separate hydraulic circuits manage percussion, feed and rotation.
Built around your working task.
Review the model and technical reference together with your application requirements. Provide hole diameter, depth, orientation and the working profile. Identify the available power, water and access conditions for the proposed equipment.
Inquire about ZDFJ76A2Technical specifications
Confirm the selected feed, drilling coverage and configuration against a current technical sheet before planning the installation.
| Hole diameter | 32–76 mm |
|---|---|
| Impact power | 24 kW |
| Rotation speed | 0–300 rpm |
| Maximum rotation torque | 980 Nm |
| Hole depth | 3500 mm |
| Maximum feed force | 15 kN |
| Width | 1990 mm |
| Length | 11800 mm |
| Weight | 18000 kg |
| Travel speed | 10 km/h |
| Gradeability | 14° |
Check the operating conditions.
Provide hole diameter, depth, orientation and the working profile. Identify the available power, water and access conditions for the proposed equipment.
Check the current technical sheet against the configuration in the quotation. Dimensions, interfaces and operating requirements should be confirmed before planning the installation.
Two booms for underground face drilling
ZDFJ76A2 is a twin-boom hydraulic face drilling jumbo for mining and tunnelling. The technical reference distinguishes electric drilling from diesel-powered tramming. This matters when planning a working location: travel access and the electrical supply for drilling are separate requirements.
The specified hole range is 32–76 mm, with a 3500 mm hole-depth reference. Send the proposed face pattern and rock conditions along with these target dimensions. The hole range is not a substitute for a coverage drawing showing where each feed can reach.
Documented construction and equipment
Electric power drives drilling operations, while the diesel engine powers travel and climbing. Impact, rotation and feed use separate hydraulic pumps and control loops; rotation-pressure-controlled feed provides the anti-jamming function.
The telescopic feed is described for face drilling, bolt holes and cross-cuts requiring both long and short rods. Aluminium beams have stainless-steel strips on the sliding surfaces, and the rod centralizers use hardened-steel wear pieces.
Four jacks support setup. A hydraulically driven cable reel is offered according to customer requirements and can retract the cable during forward and reverse travel.
Separate percussion, feed and rotation circuits
The source describes hydraulic circuits for percussion, feed and rotation, together with anti-jamming control. It also lists a 15 kN maximum feed force. These details describe how the drilling functions are arranged; they do not establish a universal drilling rate or an automatic completion time for a face.
The articulated four-wheel-drive carrier is listed at 1990 mm wide and 11800 mm long. Review the route and setup position with the actual feed arrangement. Clearance checks should include turns and the area needed to place the machine for drilling, not only straight-road width.
Define the twin-boom equipment scope
Ask for the boom coverage, rod and feed specification, utility demand and controls included in the quotation. The source materials disagree about the quantity associated with the main-motor power entry, so request the total electrical demand for the offered configuration before planning a supply.
For a smaller working arrangement, compare the single-boom ZDFJ76A1. Where the project needs a basket-equipped twin-boom arrangement, review ZDFJ86A/2 separately. Do not transfer the dimensions, motor power or working envelope from one jumbo to another.
Selection questions
What should I include in a product inquiry?
Provide hole diameter, depth, orientation and the working profile. Identify the available power, water and access conditions for the proposed equipment.
Which technical details need confirmation?
Confirm the selected feed, drilling coverage and configuration against a current technical sheet before planning the installation.
How do I request the selected configuration?
Send the model or series reference and your project requirements through the inquiry link. Include drawings or the existing equipment reference where available.
Is diesel power used for drilling?
The ZDFJ76A2 source describes electric power for drilling and a diesel engine for tramming. Request the full electrical and utility specification for the proposed drilling configuration.