hmi mud pump for sale quotation

Rugged terrain? No problem:The Versa Pumps’ swivel-action front axles keep all four wheels on the ground, allowing you to skillfully navigate those rugged and seemingly inaccessible terrains.

Controlled Versatility:Equipped with a wireless remote, you will be able to control the pumping action at the nozzle when long hoses are required for those hard to reach jobs. No other mud pump on the market offers this advanced feature!

Manufacturer of concrete raising equipment & mud jacking & polyurethane accessories. Distributor of used equipment. Various products include pumps, trailers, hopper trucks, gun clamps & tips, insertion guns, breakers, hammers, drills, remote controls, bins, bits, compressors, extension cords, foam, generators, grease, hose, mixers, kits, O-rings, ports, hydraulic power-packs, ramps, reactors, rigs, electric saws, material screens, switches, tires, transmitters & workbenches. Made in USA.

HMI is proud of all its innovations and products, but perhaps the greatest innovation is the Quik Mix Pro automated volumetric hopper/mixer unit. The first fully automated unit rolled off the production line in March of 2003. This slabjacking unit, when mounted on a truck body, can carry a slab raising pump, dry material, cement, and water. Along with its unique twin shafted mixer, it can automatically mix and place material into the hopper of a pump. No shoveling is required!

Expanding beyond just the slabjacking industry, in 2008 HMI developed a revolutionary new Hydraulic Power Pack 10. With a new 2 in 1 design it offers 10,000 psi at 1 ½ gallons per minute, or 3,000 psi at 9 gallons per minute. Not only is the unit great as a seperate hydraulic power pack for running hydraulic tools (mixers and mudpumps), piering contractors can use it to install helical and resistance piers.

Hydraulic Mudpumps, Inc. is committed to future refinements and development to its product line. Our future will be determined by requests from you, our customer, and the upcoming industry demands.

MANITOWOC, WI – August 27, 2014 – I never would have imagined that forty years ago when I was working to pay off interest on a loan to my father-in-law for my first house by working weekends raising concrete for him, that I would soon become the owner of a world leading manufacturer of concrete raising equipment and material.

That fortuitous weekend of labor was the start of it all. The growth and innovations have followed, whether it was the invention of the first hydraulic mud pump or the introduction of polyurethane systems at the entrepreneur level.

In 1978, I knew there had to be a more efficient and less strenuous way to raise concrete, so I developed the first hydraulic mudpump. The next year, sales were well on their way as was HMI as we began manufacturing the "new" hydraulic mudjacking pumps. Today, HMI continues to manufacture mudjacking pumps and systems, polyurethane foam lifting systems, and polyurethane foam.

Monthly, HMI hosts Discovery and Training Seminars either at our Manitowoc training facility or various metropolitan areas throughout the United States. These seminars offer individuals looking to add to their existing business or start-up a business, the opportunity to experience "hands-on" how to raise concrete. As a supplier and trainer, HMI has helped put over 1200 families into business and have contributed to the employment of over 10,000 people.

I am still retaining the position of CEO, but I work side by side with my two sons: Jeff-President HMI and Brian-President of RaiseRite. Over the past 40 years, we have lifted and leveled 14,000,000 sq. ft. of concrete participating in over 70,000 projects. HMI"s equipment has lifted and leveled 240,000,000 sq. ft. of concrete on every continent, but Antarctica. I look at this anniversary not being about us at HMI/RaiseRite. It is all about you-our customers-Thank you again!

About HMI/Raise Rite: HMI/Raise Rite has two Manitowoc locations: 4803 Leonard Lane and 1025 E. Albert Dr. employing approximately 30 individuals. In addition to concrete raising, RaiseRite has a foundation piering and waterproofing division. For more information, please use the contact information and links provided below.

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Deploying an embedded system with that could be retrofitted onto existing pumps, to monitor and analyze mud pump vibrations. helped reduce human exposure to hazardous environments.

As an integral part of onshore and offshore drilling, mud pumps circulate drilling fluids to facilitate drilling oil and natural gas wells. Mud pumps stabilize pressure and support the well during the drilling process and drilling fluids provide friction reduction and a means to remove cuttings. We created a leak detection system for hex pumps. The hex mud pump (see Figure 1) has six pistons, six suction valves, and six discharge valves. The six pistons are driven by a rotating, asymmetric cam. We designed a patented leakage system based on CompactRIO in house. The system monitors the suction and discharge valves using accelerometers.

The Case for an Automated Monitoring SystemValve leaks in piston pumps are often discovered at a late stage when the leaks are so severe that they induce large discharge pressure fluctuations and create washout damages. When a severe leak is detected, we localize it manually by listening to the fluid modules while the pump is running, but it is difficult to uniquely localize the leak and distinguish between a suction valve leak and a discharge valve leak.

Human exposure to hazards is the main disadvantage of manual detection, verification, and localization. Mud pumps convert large amounts of power and often output high pressures up to 350 Bar discharge. Additional equipment in pump rooms also generates high acoustic noise pressure levels that can exceed 100 dBA and cause health and hearing damage if humans are not correctly protected (see Figure 2).

Valve leaks often develop quickly, so manual detection gives very little time to prepare for exchanging the defective valve(s) after the leak is detected. If the leak source is uncertain, searching for the defective valve(s) can be costly and time-consuming.

Discovering the Vibration MethodDuring a vibration monitoring project for hex pumps, we discovered the possibility of detecting leaks using accelerometers. We recorded vibrations at different locations, both on the pump and on the discharge line, along with suction pressure, discharge pressure, and pump speeds for different pump conditions. We used a 20 kHz sampling frequency and recorded 5-second snapshots with intervals of a few minutes. On one occasion, the vibration signature significantly changed during a 15 minute period. We soon realized the spot was a growing valve leak.

After the initial discovery, we performed more tests to further explore the leak detection possibility. Figure 3 shows vibrations of all six valve blocks when discharge valve 2 (D2 valve) has a severe leak. The trace numbers indicate the accelerometer/valve block number. The high intervals of the dashed help curves represent the theoretical suction phases that happen when the suction valves are closed. These curves offer easy interpretation of the vibration signals and are derived from the proximity of the sensor signal (not shown). The low values of the help curves represent the theoretical closing of the discharge valves, which happens when the respective pistons retract. The leak intervals have a lag time shift relative to the theoretical intervals. This time shift is on the order of 25 ms and comes from 1) valve inertia causing delayed valve closing, and 2) fluid compressibility causing a finite piston stroke to compress and decompress the fluid.

Leak Detection SystemBased on that encouraging experience, we wanted to include this condition-based maintenance system as a standard feature on all hex pumps. We developed the system as a stand-alone module to add to the existing hex pump control system (see Figure 4). Slightly simplified, it consists of the following components: accelerometers (one per valve block), a proximity sensor picking up pump speed and phase, a discharge pressure sensor, an embedded monitoring system (CompactRIO with NI 9234 acquisition modules for powering the accelerometers and acquiring high frequency data), signal processing software and alarm logics implemented using LabVIEW software running on the CompactRIO monitoring system, and an HMI user interface developed in LabVIEW.

The default sampling frequency of the signals is 25 kHz, but the system can handle higher rates if necessary. The bandpass filter is optional, but experience shows that it improves contrast and detection sensitivity. Signal strength normalization by the median vibration level makes the detection nearly independent of the inherent ambient vibrations, which increase rapidly with increasing pump speed and discharge pressure. The last requirement, that the detected leaks last for a set time, eliminates erratic alarms caused by debris or large particles that can cause temporary seal malfunction.

The human ear/brain is an extremely sensitive instrument for picking up abnormal sounds. If the leak sound is too far up in the treble frequency range to hear, we can play the signal back with a lower sampling rate, thus transforming the leak noise into a more audible frequency band for the human ear.

We can use the desktop application shown in Figures 5 and 6 on a terminal to review the LDS and read raw logs and trend files directly from the LDS. This additional feature gives the operator the chance to get a closer view of the vibrations and perform audio playback to the user. Also, we can view the high-rate log of the discharge pressure to reveal a cyclic variation drop. This helps provide a better understanding of what is happening with the valves.

Figure 5 shows a 1.5 second snapshot of the vibration signatures after a severe leak developed in the D3 valve. It shows the filtered vibration signals from all six accelerometers during a 1.5 second snapshot. Acceleration signal 3 has enhanced noise amplitude during the D3 phase. A closer look at the other signals reveals that the leak induced vibrations are transferred to the other accelerometers during the same time intervals. However, the vibration transfer is relatively low, actually less that -20 dB for neighboring valve blocks and even less for the other blocks, so vibration transfer is not a serious problem in hex pumps.

CompactRIO and LabVIEW proved to be fast tools for prototyping our system and gave us an embedded deployment system that we can reliably retrofit to existing pumps. In comparison to other leak detection methods, which are based on analyzing discharge pressure, we found our vibration-based methods to be more robust and reliable, especially when it comes to localizing a leak. Our studies show that an alternative method can be applied for shaft-driven piston pumps having either an integrated valve block or split blocks with a high vibration transfer. Leak localization for this kind of pump is mainly based on the phase of the pulsating vibration level. We can use it to localize one dominating leaky valve at a time.

The Driller’s Console I/O is connected to one remote rack, located in the console and connected by dual Ethernet Fiber optic cable to one Optical Link MOXA module, also located in the console, which convert the signals for use by the fiber optic cable running to the PLCs. Below is an overview of the signals exchanged between this console and the PLC system.