To keep hydraulic equipment producing by fixing root causes, documenting every rebuild and specifying the filtration and cooling that stop the same failure from returning next quarter.
Who We Are
Hydraulic Systems Engineering designs, builds and services industrial hydraulic systems for plants where a stalled cylinder stops the whole line. Our shop rebuilds cylinders of every bore from compact clamping units to long-stroke press rams, remanufactures piston and vane pumps, services directional and proportional valves, and assembles hose and tube to SAE and ISO practice. We also build complete power units: reservoir, pump group, manifold, filtration, heat exchanger and controls, wired and run-tested before shipment. Every rebuild leaves with a test record showing flow, pressure, drift and leakage, so you know exactly what you received.
Teams around call Hydraulic Systems Engineering because hydraulic problems are rarely what they first appear to be. A cylinder that drifts may be a worn piston seal, a leaking counterbalance valve or a sticking proportional spool, and guessing wrong costs a second outage. Our technicians troubleshoot with pressure and flow instrumentation, infrared and fluid analysis instead of parts swapping. We keep common seals, rod stock, tube and hose on the shelf, maintain records of the systems we service, and schedule preventive work around your planned shutdown calendar rather than around ours.
Track Record
Projects & Case Studies
Plastics ProcessingAn aging power unit with chronic overheating was replaced by a skid-mounted unit with correct reservoir volume, an oil-to-air cooler and offline filtration. Fluid temperature dropped into the design range and seal life on the downstream clamp cylinders improved noticeably.
View Details
Contamination ControlA catastrophic piston pump failure sent metal through the entire circuit. We flushed at high velocity, replaced filters repeatedly until particle counts met target, and documented final ISO cleanliness codes before new components were commissioned.
View Details
Material HandlingTwenty-two pipe joints and a tangle of fittings were replaced with a single machined manifold carrying cartridge valves. Leaks on the machine stopped, the circuit became readable from one drawing, and troubleshooting time for the plant crew fell sharply.
View Details
Metal FormingA long-stroke main ram from a forging press was pulled, bored, fitted with a new chromed rod and seal package, and load tested to full working pressure. The cylinder was back on the press and cycling inside the scheduled outage window, with drift measured and recorded for the maintenance file.
View DetailsOur Mission
To keep hydraulic equipment producing by fixing root causes, documenting every rebuild and specifying the filtration and cooling that stop the same failure from returning next quarter.
Compliance
Hose assemblies are made to the correct rating and crimp specification.
Share the bore, stroke and mounting style with Hydraulic Systems Engineering and we will confirm rebuild feasibility, turnaround and a written scope before you ship the unit.
Our engineers size power units around real duty cycles, not nameplate guesses, matching pump displacement, reservoir volume and cooling capacity so oil temperature and viscosity stay inside the window your components were designed for.
Our Process
We review the schematic, measure pressures, flows and temperatures at test points, sample the fluid, and confirm the failing component before quoting. Guesses are expensive on hydraulic systems, because the symptom often sits far from the cause.
You receive a written scope with parts, labor and turnaround, plus options where a rebuild and a replacement are genuinely close in cost. We plan the work around your shutdown window and confirm which spares to stage.
Components are stripped, inspected, machined as required and reassembled with new seal and bearing packages, then tested under load. Measured results and the failure findings go on the service report.
We reinstall, flush the circuit, set relief and accumulator pressures, verify cycle times and fluid cleanliness, and record final settings. Follow-up oil sampling confirms the system is staying inside target.
Our Services
Engineered power units sized to your duty cycle, with pump selection, reservoir and cooling capacity, filtration targets, manifold layout and electrical controls. Units ship skid-mounted, piped, wired and run-tested, with schematics, a component list and startup instructions written for the technician who will maintain it.
Request a Quote
Complete teardown, bore and rod inspection, honing, rod rechroming or replacement, new seal and bearing packages, reassembly and pressure testing for drift and external leakage. We measure gland bore, rod diameter and bore ovality against print clearances, and report what failed so the cause can be corrected rather than rebuilt again next year.
Request a Quote
On-site and in-shop fabrication of hydraulic hose and bent tube assemblies to SAE pressure ratings, with crimp records, correct fitting series and proper routing clips. We cap and bag assemblies to keep them clean, and we can tag and catalog a machine so the next replacement is identified by part number instead of guesswork.
Request a QuoteHigh-velocity flushing after a pump or hose failure, pipework cleaning on new installations, and commissioning of valve settings, relief pressures and accumulator precharge. We document final settings and cleanliness results, so the warranty on new components is not voided by debris left behind in the lines.
Request a Quote
Rebuild of piston, vane and gear pumps and hydraulic motors, including valve plate and cylinder block lapping, bearing and shaft seal replacement, and swashplate and control adjustment. Each unit runs on a test stand to verify flow at rated pressure, case drain volume and compensator response before we release it back to service.
Request a Quote
Service vehicles stocked with seals, hose, fittings, fluid and test instruments, staffed by technicians who diagnose with gauges and flow meters rather than by replacing parts. We log pressures and temperatures during the call, so if the fault is intermittent there is real data to work from on the follow-up visit.
Request a Quote
Oil sampling with particle counts reported as ISO 4406 codes, water and viscosity checks, and wear metal analysis. We recommend filtration changes, breathers and offline kidney-loop filtration to reach a target cleanliness level matched to the most sensitive component in the circuit, usually the servo or proportional valve.
Request a Quote
Design and manufacture of custom manifolds that replace sprawling pipe and fitting assemblies with a single machined block. Fewer joints means fewer leak points, a tidier machine and faster diagnosis. We produce cavity drawings, machine from aluminum or ductile iron, and flush and test each block before cartridge installation.
Request a QuoteProjects & Case Studies
Plastics ProcessingAn aging power unit with chronic overheating was replaced by a skid-mounted unit with correct reservoir volume, an oil-to-air cooler and offline filtration. Fluid temperature dropped into the design range and seal life on the downstream clamp cylinders improved noticeably.
View DetailsContamination ControlA catastrophic piston pump failure sent metal through the entire circuit. We flushed at high velocity, replaced filters repeatedly until particle counts met target, and documented final ISO cleanliness codes before new components were commissioned.
View Details
Material HandlingTwenty-two pipe joints and a tangle of fittings were replaced with a single machined manifold carrying cartridge valves. Leaks on the machine stopped, the circuit became readable from one drawing, and troubleshooting time for the plant crew fell sharply.
View Details
Metal FormingA long-stroke main ram from a forging press was pulled, bored, fitted with a new chromed rod and seal package, and load tested to full working pressure. The cylinder was back on the press and cycling inside the scheduled outage window, with drift measured and recorded for the maintenance file.
View DetailsShare the bore, stroke and mounting style with Hydraulic Systems Engineering and we will confirm rebuild feasibility, turnaround and a written scope before you ship the unit.
Most hydraulic failures start as particle contamination. We sample fluid, report ISO 4406 cleanliness codes, specify filtration that actually reaches target, and flush systems after a catastrophic failure so replacement parts survive.
Projects & Case Studies
An aging power unit with chronic overheating was replaced by a skid-mounted unit with correct reservoir volume, an oil-to-air cooler and offline filtration. Fluid temperature dropped into the design range and seal life on the downstream clamp cylinders improved noticeably.
A catastrophic piston pump failure sent metal through the entire circuit. We flushed at high velocity, replaced filters repeatedly until particle counts met target, and documented final ISO cleanliness codes before new components were commissioned.
Twenty-two pipe joints and a tangle of fittings were replaced with a single machined manifold carrying cartridge valves. Leaks on the machine stopped, the circuit became readable from one drawing, and troubleshooting time for the plant crew fell sharply.
A long-stroke main ram from a forging press was pulled, bored, fitted with a new chromed rod and seal package, and load tested to full working pressure. The cylinder was back on the press and cycling inside the scheduled outage window, with drift measured and recorded for the maintenance file.
Our Advantages
Cylinders, pumps and motors run on our test stand before release, with measured flow, pressure holding and drift recorded on the paperwork that ships with the unit.
Particle counts before and after service are documented against ISO 4406 codes, which matters when a proportional valve costs more than the pump feeding it.
A real technician answers after hours and arrives with a stocked truck. Downtime on a press is measured in shifts, so response time is part of the service, not an extra.
Honing, rechroming and rod manufacture happen on our own equipment, which shortens turnaround on long-stroke press cylinders that would otherwise sit waiting for an outside vendor.
Power units and manifolds ship with ISO 1219 symbol drawings, port tags and a component list, so the next technician is not tracing pipe by hand.
We report what wore and why, whether that is contamination, misalignment, side loading or an undersized relief setting, so the repair addresses the actual cause.
Particle counts are measured before and after flushing, so a cleanliness target is a report rather than a claim about our procedures.
Custom power units ship with drawings your own fitters can read, which matters at two in the morning when we are not there.
Field service engineers are available at any hour, with hose assemblies made at the counter while a driver waits for them.
Track Record
Client Feedback
They found a counterbalance valve we had chased for weeks while replacing seals in the wrong cylinder. The press stopped drifting, and the service report explained exactly what was happening in the circuit.
Our new power unit runs twenty degrees cooler than the one it replaced, and the schematic on the panel door is the first useful drawing we have ever had for that machine.
After the pump failure they flushed until the particle counts actually hit target, instead of declaring it clean after one pass. The replacement pump is still running without complaint.
Share the bore, stroke and mounting style with Hydraulic Systems Engineering and we will confirm rebuild feasibility, turnaround and a written scope before you ship the unit.
Custom power unit builds run four to eight weeks from approval.
Questions & Answers
Emergency dispatch runs around the clock and service vehicles carry seals, hose, fittings, fluid and test instruments. Response time depends on distance and crew availability, which we confirm when you call rather than promising a number that cannot be met.
Usually yes for larger bores and custom cylinders, where tooling and lead time on a new unit are significant. For small standard cylinders the economics can favor replacement. We measure the barrel and rod first and tell you honestly which way the numbers fall before any work is authorized.
We service both. Mobile circuits bring their own issues, including load sense pumps, sectional valves and contamination from field conditions. The diagnostic approach is the same: instrument the circuit, read the schematic and confirm the fault before changing components.
Yes. We measure the fitting ends and overall length, identify the series and pressure class from the machine circuit, and fabricate a replacement. We also recommend tagging the machine during the visit, so future replacements can be ordered by part number instead of by sample.
It depends on the most sensitive component in the circuit. Systems with proportional or servo valves generally need tighter codes than simple directional circuits. We report current particle counts as ISO 4406 codes, state a realistic target, and specify the filtration and breathers needed to hold it.
Heat means energy is being turned into waste somewhere, commonly a relief valve dumping flow, an undersized reservoir or cooler, internal leakage in a worn pump, or a duty cycle heavier than the original design. We measure case drain flow and circuit pressures to identify which, then correct the actual source.
Custom power unit builds run four to eight weeks from approval.
Contact
Custom power unit builds run four to eight weeks from approval.
Projects & Case Studies
Plastics ProcessingAn aging power unit with chronic overheating was replaced by a skid-mounted unit with correct reservoir volume, an oil-to-air cooler and offline filtration. Fluid temperature dropped into the design range and seal life on the downstream clamp cylinders improved noticeably.
View DetailsContamination ControlA catastrophic piston pump failure sent metal through the entire circuit. We flushed at high velocity, replaced filters repeatedly until particle counts met target, and documented final ISO cleanliness codes before new components were commissioned.
View DetailsMaterial HandlingTwenty-two pipe joints and a tangle of fittings were replaced with a single machined manifold carrying cartridge valves. Leaks on the machine stopped, the circuit became readable from one drawing, and troubleshooting time for the plant crew fell sharply.
View DetailsMetal FormingA long-stroke main ram from a forging press was pulled, bored, fitted with a new chromed rod and seal package, and load tested to full working pressure. The cylinder was back on the press and cycling inside the scheduled outage window, with drift measured and recorded for the maintenance file.
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Emergency Field Service
We rebuild cylinders, pumps and valves to published clearances, then test every unit under load before it leaves the bench, so your press or machine returns to the production schedule instead of the repair queue.
Track Record
Our Advantages
Cylinders, pumps and motors run on our test stand before release, with measured flow, pressure holding and drift recorded on the paperwork that ships with the unit.
Particle counts before and after service are documented against ISO 4406 codes, which matters when a proportional valve costs more than the pump feeding it.
A real technician answers after hours and arrives with a stocked truck. Downtime on a press is measured in shifts, so response time is part of the service, not an extra.
Honing, rechroming and rod manufacture happen on our own equipment, which shortens turnaround on long-stroke press cylinders that would otherwise sit waiting for an outside vendor.
Power units and manifolds ship with ISO 1219 symbol drawings, port tags and a component list, so the next technician is not tracing pipe by hand.
We report what wore and why, whether that is contamination, misalignment, side loading or an undersized relief setting, so the repair addresses the actual cause.
Particle counts are measured before and after flushing, so a cleanliness target is a report rather than a claim about our procedures.
Custom power units ship with drawings your own fitters can read, which matters at two in the morning when we are not there.
Field service engineers are available at any hour, with hose assemblies made at the counter while a driver waits for them.
Our Services
Engineered power units sized to your duty cycle, with pump selection, reservoir and cooling capacity, filtration targets, manifold layout and electrical controls. Units ship skid-mounted, piped, wired and run-t
View DetailsComplete teardown, bore and rod inspection, honing, rod rechroming or replacement, new seal and bearing packages, reassembly and pressure testing for drift and external leakage. We measure gland bore, rod diame
View DetailsOn-site and in-shop fabrication of hydraulic hose and bent tube assemblies to SAE pressure ratings, with crimp records, correct fitting series and proper routing clips. We cap and bag assemblies to keep them cl
View DetailsHigh-velocity flushing after a pump or hose failure, pipework cleaning on new installations, and commissioning of valve settings, relief pressures and accumulator precharge. We document final settings and clean
View DetailsRebuild of piston, vane and gear pumps and hydraulic motors, including valve plate and cylinder block lapping, bearing and shaft seal replacement, and swashplate and control adjustment. Each unit runs on a test
View DetailsService vehicles stocked with seals, hose, fittings, fluid and test instruments, staffed by technicians who diagnose with gauges and flow meters rather than by replacing parts. We log pressures and temperatures
View DetailsOur Process
We review the schematic, measure pressures, flows and temperatures at test points, sample the fluid, and confirm the failing component before quoting. Guesses are expensive on hydraulic systems, because the symptom often sits far from the cause.
You receive a written scope with parts, labor and turnaround, plus options where a rebuild and a replacement are genuinely close in cost. We plan the work around your shutdown window and confirm which spares to stage.
Components are stripped, inspected, machined as required and reassembled with new seal and bearing packages, then tested under load. Measured results and the failure findings go on the service report.
We reinstall, flush the circuit, set relief and accumulator pressures, verify cycle times and fluid cleanliness, and record final settings. Follow-up oil sampling confirms the system is staying inside target.
Compliance
Hose assemblies are made to the correct rating and crimp specification.
Projects & Case Studies
Plastics ProcessingAn aging power unit with chronic overheating was replaced by a skid-mounted unit with correct reservoir volume, an oil-to-air cooler and offline filtration. Fluid temperature dropped into the design range and seal life on the downstream clamp cylinders improved noticeably.
View DetailsContamination ControlA catastrophic piston pump failure sent metal through the entire circuit. We flushed at high velocity, replaced filters repeatedly until particle counts met target, and documented final ISO cleanliness codes before new components were commissioned.
View DetailsMaterial HandlingTwenty-two pipe joints and a tangle of fittings were replaced with a single machined manifold carrying cartridge valves. Leaks on the machine stopped, the circuit became readable from one drawing, and troubleshooting time for the plant crew fell sharply.
View DetailsMetal FormingA long-stroke main ram from a forging press was pulled, bored, fitted with a new chromed rod and seal package, and load tested to full working pressure. The cylinder was back on the press and cycling inside the scheduled outage window, with drift measured and recorded for the maintenance file.
View DetailsSectors
We analyze repeat failures rather than quietly selling the same part twice.
Questions & Answers
Custom power unit builds run four to eight weeks from approval.
Read MoreEmergency dispatch runs around the clock and service vehicles carry seals, hose, fittings, fluid and test instruments. Response time depends on distance and crew availability, which we confirm when you call rather than promising a number that cannot be met.
Usually yes for larger bores and custom cylinders, where tooling and lead time on a new unit are significant. For small standard cylinders the economics can favor replacement. We measure the barrel and rod first and tell you honestly which way the numbers fall before any work is authorized.
We service both. Mobile circuits bring their own issues, including load sense pumps, sectional valves and contamination from field conditions. The diagnostic approach is the same: instrument the circuit, read the schematic and confirm the fault before changing components.
Yes. We measure the fitting ends and overall length, identify the series and pressure class from the machine circuit, and fabricate a replacement. We also recommend tagging the machine during the visit, so future replacements can be ordered by part number instead of by sample.
From Our Desk
Three numbers describe the particle population in your oil. We explain what each digit counts, which code your circuit actually needs, and why a filter rating alone does not prove you are reaching it.
Rule-of-thumb multipliers of pump flow often leave systems running hot. A short look at heat load calculation, cooler selection and why ambient conditions belong in the sizing math.
Drift is not always a bad piston seal. Counterbalance valves, pilot-operated check leakage, worn spools and thermal contraction all look alike from the operator seat. Here is how to tell them apart.
Metal debris does not stay where it was made. We cover high-velocity flushing, filter change intervals during the process, and the particle counts that justify recommissioning the circuit.
Share the bore, stroke and mounting style with Hydraulic Systems Engineering and we will confirm rebuild feasibility, turnaround and a written scope before you ship the unit.