The 9000 series of Ecoquip pump jacks are made up of a power unit that sits a few meters away from the well head and a set of slave cylinders that are mounted directly on top of the well head.
The power unit consists of a nitrogen ballast which acts as a counterbalance to ensure a smooth, efficient stroke reducing costs on service, rods, pumps and energy.
Internal, accurate controls ensure precise movement and the unit does not experience any shocking during the turnarounds of strokes.
Stroke speed and length can be set and changed in a matter of seconds.
Units can be operated by either electric or multi-cylinder motor.
Set-up and tear down is done in a matter of two hours with a crew of two, no site set-up is required and no footprint is left afterwards.
The Ecoquip 9000 is a unique, patented system that’s special features allow for unrivaled production compared to other pump jacks.
Our goal is to provide the most reliable and lowest maintenance schedule for our customer, so we have developed a more reliable control panel with a low 10-30 volt power requirement, a wider operational temperature range of -40to +70 C, improved ease-of-use controls and better stroke management. In addition, it offers great opportunities for expandability for any of your production monitoring needs. Connectivity, precision, and functionality.
Ecoquip pump jacks can be driven by an electric or gas motor. Typically our equipment uses GMC or Ford motors or 50HP electrics. The gas motors can be run off of propane, diesel or sweet wellhead fuel.
There are two primary components to this unit – a slave cylinder assembly, which mounts on the wellhead above the tubing flange and a skid mounted power unit, which is placed about 20 feet from the well.
The power unit consists of the master cylinder, a hydraulic pump, motor and a control panel.
The master cylinder has four chambers, “A, B, C and D”, which are created by a free floating piston inside the master cylinder. At the top of the master cylinder (open end) is an accumulator which is used to store energy during the sucker rod downward movement and which releases energy during the sucker rod upstroke. The piston moves vertically within the cylinder in the opposite direction to the polished rod
Chamber A is connected to the slave cylinders by means of a pair of hoses. The operating principle of chamber A and the slave cylinders is comparable to the hydraulic brake system on an automobile or light truck. Oil is moved from the master cylinder to the wheel cylinders to apply the brakes when the brake pedal is depressed. As the brake pedal pressure is removed oil flows from the wheel cylinders to the master cylinder. The Series 9000-6 hydrostatic pump uses this same principle. Oil is displaced from chamber A to the slave cylinders causing them to rise when the piston in the master cylinder moves downward. The piston will rise when the polished rod moves down because oil is moved from the slave cylinders to chamber A of the master cylinder.
Chamber D of the master cylinder is the accumulator. It is a closed chamber that is filled with pressurized nitrogen. It acts to store energy during the down stroke of the polished rod for use in moving the polished rod upward.
Chambers B and C are where energy is added to the system. Chamber B is pressurized with oil from the hydraulic pump during the master piston down stroke. The hydraulic pump pressurizes chamber C during the polished rod down stroke. Chambers B and C are in a closed loop with the pump. The pump draws oil from Chamber C and discharges into Chamber B when the master piston is moving down. The direction of oil flow is reversed when the set limit of travel is reached.
A positive displacement swash plate-type pump provides the energy required for pumping. The volume of fluid passing and direction of flow through the pump is controlled by changing the angle of the swash plate. The angle of the swash plate is set by a signal received from the motion controller in the control panel. The pump is directly connected to the prime mover, an electrical motor or gas engine.
The Control Panel is the brains of the system. It tells the pump which direction to pass oil and at what flow rate. The control panel receives a continuous location signal from a probe that senses the position of the master piston within the master cylinder. When the probe senses that the master piston is at a preset travel position (such as the top of the stroke) the control panel delivers a signal to the pump to change flow direction. Stroke length, polished rod velocity, top turnaround and bottom turnaround acceleration are all considered by the control panel in delivering a signal to the hydraulic pump.
The slave cylinders mount on the wellhead and provide the power to stroke the polished rod. The assembly consists of twin cylinders mounted on either side of the polished rod, a traveling cross yoke (green) to pick up the polished rod. A fixed yoke (connector plate) ensures the rod is pulled straight and held in place. A rod clamp is applied above the traveling yoke.
Tell us what your requirements are and we design it.
Unit size can be designed and engineered to your specific requirements with possibility of a unit with 200” maximum stroke length and 4-5 SPM or smaller units of less than 100” stroke and further simplicity to maintain cost effective HPU for your application. These units would be purchased and specific to customer application minimum quantity would be required. Contact us for further details.
Strokes (per minute)
Maximum Load (lbs)
Maximum Stroke Length (inches)
1 to 8
1 to 8
1 to 4
Hoses and fittings
All hoses and fittings are rated to exceed spec and are 3000 psi to 9000 psi
Schaeffer 275S Synthetic hydraulic oil. All hoses and fittings are rated to exceed spec by size and are 3000 psi to 9000 psi
2 x 3” (7.62cm) Cylinders, 24”(61.0cm) base, 21’ (6.4m) tall, 35’ (10.7m) fully extended
Secured to tubing bonnet. Adapted to fit 2000, 3000 and 5000 psi wellheads. Standard size R45, R46.
Can be adapted to R24, R27
Slave Cylinder MAWP 11,600psi (80,000kPa) One wiper seal and 2 pressure seals. Any oil passing the pressure seals will be contained by the wiper seal and returned to the hydraulic tank before leaking from the system
4.5’(1.37m)w x 10’(3.05m)l x 8’(2.44m)h
50 hp Electric, 350in3 (5.7L) or 262in3 (4.3L) GM Vortec Gas engines
36” (91.4cm) 1,750psi (12,066kPa) max
Piston Head MAWP 8,700 psi (60,000kPa)
Any leaking of the above seals is internal in the cylinder
Full Service, rent or sale, we’re by your side.
Our units are available for rent or sale. Our company is full service and ensures your equipment is always pumping. Set up, tear down, servicing and troubleshooting is provided by our friendly and knowledgeable service team. Monthly rental arrangements are available for any term that you may require. We stand by our equipment and know you will be satisfied with your choice to use Ecoquip equipment.
Mounts directly and evenly
on top of wellhead ensuring
polished rod always
pulled straight up and down.
No unreliable and unsafe
proximity switches or
sensor bars to control
Engine fully enclosed with
safety and the ever-changing
environment in mind. Gas or
electric motors available.
N2 counter-balance in unit
acts as your surface shock
absorber for downhole
equipment and stores energy for the next up stroke.
Control system gives complete stroke control and immediate well information to operator. Remote monitoring capable.
Smooth stroke ensures almost non-existent movement and vibration of all hoses, no whip protection required.
If you have a question about the Ecoquip 9000 Series that you do not see listed, please contact us. We would be happy to answer any questions personally.
Our units are available for purchase, lease, and rent. We will do our best to accommodate your Capex, or Opex needs. Purchase is available for new, or refurbished units.
We have an easy rent to own option. We will contribute 75% of the rental cost toward the purchase price for a period of up to 6 months.
It is not a problem if the gas is coming of the top of a separator. It may be a problem if the gas is coming directly from the well bore. We do have an inline scrubber that may be adequate to remove liquids.
H2S will significantly reduce engine life.
We have remote monitoring system that can be accessed through our desktop app, or website. Our controller transmits Modbus data and can interface with SCADA.
No N2 is not problem for us. Being a sealed system there are no leaks, and due to the volume of N2 and the system being perfectly balanced on installation, ambient temperatures affect the system very minimally.
No, due to the Nitrogen accumulator, the system is in perfect balance and the hydraulic pump is only required to lift the weight of the fluid and not the rod string on the upstroke. Then the hydraulic pump works against the nitrogen balance on the downstroke. This created minor pressure swings and avoids undue stress on hoses, couplings, and fittings. There is redundancy in our seals to prevent leaking as well. There are wiper seals above the pressure seals that contain any leaks once the pressure seals begin to pass after years of operation.
We are the most reliable hydraulic pumpjack available. We can actually make an operator’s job easier with everything being adjustable quickly with the on-screen control panel. Stroke length, stroke speed, and even delay can easily be changed with the push of a button. Another advantage is the perfectly vertical lift. The lifting unit mounts directly to the tubing bonnet avoiding uneven seal wear on our unit and stuffing box packing.
The cost is about $500 for consumables for gas motors and then an hourly cost. Service only requires about half an hour so the biggest variable is travel and we will do our best to find an authorized vendor close to the field.
We have authorized some third-party maintenance companies to perform service on our rental units. If the units are purchased, an authorized vendor must be used to maintain the one-year warranty. After that period, the choice is yours, but we highly recommend an Ecoquip authorized dealer that uses our specified maintenance parts.
Service is our top priority! Your production is our top goal. We will take every measure to ensure minimal downtime. If there is a difficulty with our rental units, they will be fixed, or replaced next day within reason.