KMT Waterjet Streamline PRO 125i
Key Specifications
Cutting Area
Pump Pressure
Pump Power
Max Cutting Thickness
Positioning Accuracy
Cutting Speed
Overview
The KMT Waterjet Streamline PRO 125i is a high-pressure waterjet intensifier pump system designed to serve as the power source for industrial abrasive and pure waterjet cutting machines. KMT Waterjet, based in Baxter Springs, Kansas, is the originator of modern high-pressure waterjet technology and remains one of the most respected pump manufacturers in the industry. Unlike a complete cutting system, the Streamline PRO 125i is a standalone intensifier pump unit that is integrated by machine builders and end users into their cutting table configurations.
The PRO 125i generates continuous operating pressure of up to 87,000 psi (6,000 bar) with a hydraulic drive rated at 125 horsepower (93 kW). At this pressure level, the pump can drive a single cutting head at high cutting speeds or supply multiple heads simultaneously in multi-head configurations. The intensifier design uses a hydraulic piston to compress water through high-pressure cylinders and is renowned for delivering stable, consistent pressure that translates directly to cut quality and edge finish.
The Streamline PRO 125i incorporates KMT's advanced seal and cylinder technology developed through decades of intensifier engineering. The proprietary Dynamic Seal system extends maintenance intervals significantly compared to earlier designs, reducing the frequency of high-pressure seal replacements that represent the primary ongoing maintenance cost in waterjet operations. An integrated control panel with pressure monitoring, fault diagnostics, and remote interface capability allows the pump to communicate with the host machine controller for coordinated operation and automated pressure adjustments.
As a pump-only system, the Streamline PRO 125i is purchased by machine builders integrating it into custom cutting cells, by facilities upgrading aging pump units on existing tables, or by waterjet system manufacturers including it as an OEM component. It is compatible with KMT's own cutting heads and nozzle systems as well as third-party cutting table platforms from manufacturers including Flow, OMAX, WARDJet, Bystronic, and Techni Waterjet.
Full Specifications
| Parameter | Value |
|---|---|
| Cutting Area | N/A — intensifier pump unit only (no integrated cutting table) |
| Pump Pressure | Up to 87,000 psi (6,000 bar) continuous operating pressure |
| Pump Power | 125 HP (93 kW) hydraulic drive motor |
| Max Cutting Thickness | Application-dependent — up to 200+ mm soft materials; pump supplies cutting head, table determines reach |
| Positioning Accuracy | N/A — pump unit only; accuracy determined by host cutting table motion system |
| Cutting Speed | Application-dependent — head, nozzle size, material, and pressure setting determine cutting speed |
| Control System | Integrated KMT pump control panel with pressure monitoring, diagnostics, and remote I/O interface |
| Machine Weight | Approx. 1,600 kg (3,527 lb) |
Strengths & Limitations
Strengths
- 87,000 psi (6,000 bar) maximum output pressure represents the highest performance tier in industrial waterjet pumping
- KMT Dynamic Seal technology extends high-pressure seal service life and reduces replacement frequency versus prior generations
- Broad compatibility with major third-party cutting tables — Flow, OMAX, Bystronic, WARDJet, Techni, and others
- Global KMT service and parts network in 40+ countries provides fast seal kit and cylinder rebuild support
Limitations
- Pump unit only — requires a separate cutting table, gantry motion system, and abrasive cutting head to form a complete cutting cell
- 125 HP power demand requires 480V three-phase electrical service and appropriate switchgear — a significant infrastructure investment
- Intensifier maintenance requires trained technicians; high-pressure seal and check valve work is specialized and time-sensitive
Best For
Frequently Asked Questions
01
An intensifier pump uses a hydraulic piston to amplify pressure in stages, achieving up to 87,000 psi with very smooth, consistent output. Direct-drive pumps use a crankshaft-driven plunger and typically operate at 55,000–60,000 psi. KMT's intensifier design is preferred for maximum pressure applications and precision edge quality, while direct-drive units offer lower initial cost and simpler maintenance at moderate pressure levels.
02
Yes. The 125 HP output can support two or more cutting heads depending on nozzle orifice size and desired operating pressure. Running two heads simultaneously splits the available flow, which may reduce cutting speed per head but increases overall table throughput. KMT provides flow and pressure calculation charts for multi-head configuration sizing.
03
The PRO 125i's Dynamic Seal system targets high-pressure seal life of 700–1,100 operating hours depending on water quality, duty cycle, and operating pressure. Check valves and intensifier cylinder components are inspected at intervals defined in the KMT service manual. Water quality — especially hardness and TDS — is the single largest factor affecting seal longevity.
Community Discussions
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Links to community discussions. Summaries are editorial — visit the original thread for full context.
