Cobra-20
Product characteristics
We present the Cobra-20 directional pipe jacking machine with radio locating and steering system.
Technical features of the machine allow to make 50 m long pilot drills, pulling polyethylene pipes (PE), pulling short pipe modules, performing pipe bursting operations on pipes ranging from 32 to 160 mm in diameter. The machine can be used as a winch with a pulling force of 20 t, e.g. for pulling pipes into an existing pipeline.
We provide theoretical and practical training covering the operation of the machine and locating system.
Specification
- Cobra-20 Directional pipe jacking machine
- Drilling rods L = 420 mm, 30-60 meters in set
- Hydraulic Power Pack + 10 m hoses
- Instruments for reaming the hole and pulling PE pipes of diameters 32, 40, 50, 63, 90, 110, 160
- SNS-1tNV navigation with “Drilling to Target” feature
Delivery and warranty conditions
Delivery time: 1-21 days depending on current stock. The time may depend on the availability of production materials.
Warranty: 12 months
Sense Navigation Warranty: 24 months
We are the only authorized SENSE navigation supplier in Poland, we provide on-site service in Zabrze, but we only service devices purchased from our company.
Technical data and dimensions
Weight and dimensions of the machine
90 kg, 750 × 500 × 312 mm
Weight and dimensions of 8.2 kW Power Pack
105 kg (without working fluids), 1060 × 600 × 720 mm
Pulling force
200 kN
Machine pushing force
160 kN
Diameter of pipes that can be installed
32 – 160 mm
Typical diameters of pipelines to be replaced
50 – 150 mm – ceramics, concrete, cast iron
Maximum length of pipe section to be installed
50 m, depending on the soil conditions and diameter of the pipe
Maximum length of pipeline to be replaced by bursting
50 m
Machine’s working environment
water, sewerage (in flooded well), -20ºC / +40ºC
Hydraulic parameters:
Working pressure of hydraulic cylinders
up to 20 MPa
Output of hydraulic pump
up to 15 l/min
Specification
1. Cobra-20 Directional pipe jacking machine - UМ20
The set includes: pipe jacking machine (frame, bearings, hydraulic cylinders, jaws), hydraulic manifolds, quick couplings, fixing elements etc. Operator’s Manual and other documents are in English (or your language). The set includes all wrenches and instruments necessary for the proper operation of the machine.
Set of semicircular fixing elements for fixing the machine in a well (Option)
2. Drilling rods with conical thread - Cobra-20
The standard set includes 30m drilling rods.
3. AMP-10 hydraulic unit with a high-quality petrol engine - Cobra-20
Portable hydraulic power pack with a set of 10 meter hoses. The power pack is delivered dry, without fuel and hydraulic oil. The set includes instruments for operation and maintenance, first inspection set, Operator’s Manual for the engine in English, hydraulic and electric scheme. Operation is accomplished via remote (cable) control.
4. Typical drilling tools
4.1. Set of reamers to expand the hole:
4.1.1. Reamers: 90, 127, 140, 170, 190 mm
4.2. Set of PE pipe pullers for diameters:
4.2.1. Pullers 32, 40, 50, 63, 90,110,160 mm
- We also produce double-pipe expanders. For example 2xPE110..
- Expanders for extremely hard soils
- Well spreaders for work in wells DN1000, DN1200, DN1500
SNS-1tNV Locating System
The SNS-NV navigation system was introduced to the market in 2023 and is an improved version of the SNS-ProN navigation.
SNS-1t navigation system was developed specifically for small pipe jacking machines. It is equipped with small permille (0.1 percent precision) probe.
The receiver has a “Drilling-To” feature.”
It is a proven, precise navigation system for directional drilling with user interface and documentation available in English.
The measurement and guidance is made possible by placing the probe inside the pilot head. The probe measures the position, spin and inclination of the drilling head in real time. The maximum measuring depth is 9 meters and the precision of inclination measurement is 0.1%).
Drilling technique for Cobra-20 Pipe Jacking Machine
The Cobra-20 machine can work in a trench or in an existing well starting with DN1000.
The first step is pilot drilling, which is accomplished by pushing drilling rods into the soil while controlling the direction with SNS navigation.
Next, the hole is expanded as required by pulling a series of reamers without using any drilling fluid, while pulling the pipe.
This method of hydraulic jacking is useful for installing pipes under roads and railways without interference with the traffic and the road surface. It easily overcomes small rivers or drainage ditches.
The precision of navigation is more than enough to install cables, pressure lines and even gravity sewers if the inclination is high enough, thanks to using a per mille 0.1% probe.
This technology does not require using any drilling fluids therefore it can be applied in minus temperatures.
The advantages of hydraulic pipe jacking are simplicity, lack of vibration, very small size of excavation and negligible disruption of the surrounding area. The fact that no drilling fluid is necessary makes this method both ecological and robust in low temperatures.
Replacement of existing pipelines
The Cobra-20 machine can also be used to replace fracturable old pipes by static pipe bursting, or by pulling a new pipe of smaller diameter into an existing old pipe.
Attention. A copy of our pressing machine has appeared on the market. We declare that we do not take responsibility for counterfeit, questionable quality products circulating on the market. Although this is a copy that is confusingly similar, it is not our product. We recommend that you check the credibility and especially the experience of the company offering this type of equipment.
About the developer of controlled jacking machines
Eng. Damian Sobczak – Creator of solutions in trenchless technologyPresident of the company – Specialist in culvert construction and mechatronics.
Since 1997 he has been dealing with topics strictly focused in the sphere of trenchless technology. He has participated directly in the construction of pipelines by many methods. From simple hand-piercing, followed by molehilling, static jacking, guided static jacking, steel pipe driving, cracking, to HDD drilling as well as gravity auger drilling and microtunneling.
Holder of the highest degree of drilling machine operator certification. Graduated from mechanical schools with multiple diplomas as well as mechatronic studies.
Winner of many awards and diplomas . In 2009, he developed the TSN-02 Tele-optical Navigation System for auger drilling, selling worldwide. He is the author of the first in Poland, probably the fastest UM-32, MMP-32, Cobra-32 steerable jacking machine, working in a flushless system.
Expert in the field of drilling equipment with more than 25 years of experience. Expert opinion and no-obligation advice on many topics in the trenchless industry.
Gallery
Delivery, training, technical service
Standard delivery conditions: Directly to the customer. We can quickly and reliably organize dispatch, customs clearance and delivery at your door or to your construction site. Average lead time is 30 days, and in case of spare parts up to 48 hours. We ensure full technical support, training, guarantee and post-guarantee service.
“NODIGMARKET24 Damian Sobczak”
POLAND, EU, 41-807 Zabrze, Handlowa 6
TAX ID: 648-20-99-938
Damian Sobczak, B.Eng.
Tel: 514-611-415
nodigmarket24@gmail.com
