NOP Trochoid pump TOP-216HBMVP
2 month ago
Product details
I. Brand Profile & Model Decoding
NOP (Nippon Oil Pump Co., Ltd.) is a time-honored Japanese manufacturer specializing in high-performance Hydraulic gear pump products. Its proprietary Trochoid pump series acts as a core power component to stabilize oil circulation and pressure control for the whole industrial hydraulic system.
Breakdown of TOP-216HBMVB Model Code
- TOP: NOP’s flagship series of trochoid-type Hydraulic gear pump
- 216: Rotor theoretical displacement 16 cm³/rev, optimized for medium-low flow compact hydraulic system layouts
- HB: Upgraded 2HB pump housing adopting Rc sealed taper pipe thread, directly interchangeable with old 2HA models to cut renovation costs of existing hydraulic system
- M: Motor direct-coupled integrated structure, coaxial transmission reduces power loss and guarantees steady power output of closed-loop hydraulic system
- V: Equipped with VB built-in relief valve, providing overload pressure limiting protection for the whole hydraulic system
- B: Standard basic configuration of internal relief valve with internal oil return, widely compatible with conventional standard hydraulic system
II. Core Technical Parameters
Item Technical Specification
Theoretical Displacement 16 cm³/rev (universal benchmark parameter for industrial Hydraulic gear pump)
Output Flow 24 L/min @1500rpm (50Hz); 28.8 L/min @1800rpm (60Hz), maintaining smooth flow fluctuation curve of the hydraulic system
Pressure Rating Continuous rated working pressure: 1.5 MPa; Instant peak pressure: 3.0 MPa, perfectly matching medium-pressure industrial hydraulic system
Max Permissible Rotational Speed 1800 rpm
Applicable Working Media Hydraulic oil, lubricating oil, cooling oil; kinematic viscosity 10~500 mm²/s (ISO VG22~VG68), common medium for mainstream hydraulic system
Allowable Fluid Temperature -5℃ ~ +80℃
Inlet & Outlet Port Specification Rc 3/4 inch
Net Weight of Pump Body Approx. 4.6 kg (motor not included)
Supporting Motor Protection Grade IP44 totally enclosed fan-cooled design, adapting to long-term non-stop running of the hydraulic system
III. Structure & Working Principle
This precision Hydraulic gear pump adopts high-precision internal-external trochoid meshing structure. The periodic expansion and contraction of sealed working cavities finish oil suction and discharge, achieving far lower pulsation than ordinary external-meshing hydraulic gear pumps and effectively suppressing pressure shock inside the hydraulic system.
1. HBM Integrated Compact Design: The pump head is rigidly assembled with a three-phase asynchronous motor without extra couplings, lowering failure risks and improving space utilization of the overall hydraulic system.
2. VB Built-in Relief Protection: The preset relief valve sets the upper pressure limit of the hydraulic system. When overload occurs, oil flows back internally to avoid damage to downstream valves, cylinders and other key components of the hydraulic system.
3. Automatic Axial & Radial Gap Compensation: The structure compensates wear clearance dynamically during operation, keeping stable volumetric efficiency of the Hydraulic gear pump and extending the overall service cycle of the hydraulic system.
IV. Core Advantages as Hydraulic Gear Pump
1. Ultra-low noise & flow pulsation: Delivers consistent oil supply for high-precision machine tool hydraulic system
2. Optional bidirectional rotation: Flexible to match different piping designs of customized hydraulic system
3. Modular assembly for easy maintenance: Separately replaceable rotor and sealing kits shorten downtime for hydraulic system overhaul
4. Strong self-priming capability: Effectively prevents cavitation and air suction faults at the inlet end of the hydraulic system
5. Reliable tapered thread sealing: Avoids medium leakage and maintains long-term pressure stability of the hydraulic system
V. Typical Application in Hydraulic System Scenarios
- Spindle lubrication and guideway circulating oil supply hydraulic system for CNC lathes, machining centers and grinders
- Low-pressure oil replenishment & cooling circulation hydraulic system for injection molding and die-casting machinery
- Centralized gearbox lubrication hydraulic system for textile, printing and packaging equipment
- Forced lubrication hydraulic system for fans, air compressors, reducers and large rotating equipment
- Small hydraulic power unit low-pressure fuel feeding hydraulic system for light automation lines
VI. Selection & Operation Guidelines for Hydraulic System
1. Optional matched three-phase motors: 200W/400W/750W, with voltage options of 200V/220V/380V (50/60Hz), compatible with standard power supply of industrial hydraulic system
2. The preset pressure of the VB relief valve can be fine-tuned on site; prolonged over-limit operation will break pressure balance of the hydraulic system and accelerate pump wear
3. Install a ≤100μm precision filter at the oil inlet to block contaminants and protect the core rotor of the Hydraulic gear pump
4. Select ISO VG22 low-viscosity hydraulic oil for cold-start hydraulic system, and ISO VG46/VG68 for high-temperature heavy-load hydraulic system
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Ningbo Hengnuo Hydraulic Drive Co.,Ltd
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4 year
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