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Netzsch Precision Single Screw Centrifugal Pump Replacement Spare Parts Rotor
Product Details
Model NO.:
Rotor Parts
Pump Package:
Carton And Wooden Cases
Testing:
Dynamic Balancing
Types Of Welding Parts:
OEM/ODM
Material Standard:
ASTM, ANSI, SAE, Uns, DIN, En, ISO, Toct
Material:
1Cr18Ni9Ti/DIN1.4312 Coating 250umcr, 1Cr18Ni9Ti/D
Certificate:
ISO9001:2015, ISO14001:2004
Mould:
Investment Casting Mould, Sand Casting Mould
Pump Model.:
Nm011by02s12b, Nm021by02s12b Nm031by02s12b, Nm038b
Suitable Brand:
Netzsch
Material.:
0cr18ni12mo2ti/DIN1.4571 None Coating, 1.2436 Quen
Material..:
DIN1.7225 / 42CrMo4 Coating 250umcr, DIN1.7225 Non
Transport Package:
Carton And Wooden Cases
Specification:
According To The Drawings
Trademark:
Vinsome
Origin:
China
HS Code:
84139100
Production Capacity:
10, 000 Tons Per Year
Highlight:
Netzsch centrifugal pump rotor
,precision screw pump parts
,Netzsch pump replacement rotor
Payment & Shipping Terms
Minimum Order Quantity
1
Price
50
Product Description
NETZSCH Rotor – Manufacturing, Quality Inspection & How to Order
About Dongguan HydroBlue Co., Ltd.
DONGGUAN HydroBlue CO.,LTD. is an innovation-led enterprise delivering comprehensive technical solutions in fluid machinery, fluid engineering, industrial automation, and frequency conversion technologies. Our cross-functional engineering team of 8 professionals in fluid engineering, electrical engineering, and electronic engineering blends academic research capabilities with agile manufacturing. Partnerships with Jiangsu University, Chinese Academy of Sciences, and Guangdong University of Technology keep our hydraulic design and surface coating capabilities at the leading edge internationally. Jiangsu University National Research Center of Pumps contributes to rotor kinematic analysis and seal line verification for NETZSCH progressing cavity pump rotors; Chinese Academy of Sciences develops advanced hard coating technologies including proprietary HVOF formulations for severe abrasive rotor service; Guangdong University of Technology integrates CNC multi-axis turning centers and in-process optical metrology for precision rotor helix machining.
Send us your pump model and rotor requirements — our technical team will cross-check compatibility and respond with a professional recommendation.
OUR BRANDS & SERVICES
Our brand was established to deliver integrated technical solutions in the fluid machinery and engineering sectors. Backed by a complete portfolio of specialized technologies and product lines, we offer clients expert technical consultation, commercial support, and bundled product solutions — from pumps and frequency converters to servo drives, PLC-HMI, industrial control cabinets, motors, mechanical seals and assemblies, couplings, gearboxes, and full-cycle engineering services (overseas on-site 3D scanning reverse molding of pump replacement parts and field equipment debugging by our dispatched engineers internationally).
Manufacturing Process
- Geometry Capture — Original rotor scanned via FARO 3D to capture helix profile, diameter, pitch, and shaft connection geometry
- Material Sourcing — Certified bar stock or forged blank sourced and verified against material specification; mill cert provided
- Turning & Machining — CNC lathe machining of rotor body, helix turning on multi-axis CNC, shaft journal and keyway machined to tolerance
- Heat Treatment — Annealing or hardening and tempering applied per material specification to achieve target mechanical properties
- Grinding — Helix surface ground to final diameter and finish; shaft journals ground to H6 tolerance for bearing fit
- Surface Treatment — Hard chrome plating, HVOF tungsten carbide, Stellite overlay, or ceramic coating applied to the helix surface
- Coating Finishing — Coated surface ground or polished to final diameter; coating thickness verified
- Dynamic Balancing & Final Inspection — Rotor dynamically balanced; CMM helix pitch/lead verified; hardness and material certs compiled; rotor dispatched with full documentation package
Common Failure Modes & Diagnosis
Failure Mode | Symptom | Root Cause | Prevention / Solution |
|---|---|---|---|
Abrasive Wear | Helix surface worn thin; reduced clearance with stator; flow rate drop | High solids content, particle hardness, extended running hours | Upgrade to HVOF WC coating; inspect and replace at scheduled intervals |
Corrosion | Surface pitting, rust, metal loss on helix | Corrosive fluid attacking base metal when coating is worn | Upgrade to 316SS, duplex SS, or Hastelloy base material |
Coating Delamination | Peeling or flaking of hard chrome or HVOF coating from rotor surface | Poor surface preparation before coating, coating applied too thick, thermal mismatch | Specify surface preparation standard; choose appropriate coating type and thickness |
Bending / Deflection | Excessive vibration, rotor contacting stator, sudden efficiency loss | Overspeed, rotor not supported during handling, excessive bearing wear | Verify operating speed within limits; handle rotors with support mandrel |
How to Order
- NETZSCH Pump Model & Size Code — The pump series and size code (e.g., NMO038 or TN038) determine rotor diameter, pitch length, head count, and helix direction
- Rotor Material — Chrome steel (standard), 316SS, 17-4PH, duplex stainless, or Hastelloy for corrosive/abrasive service
- Surface Coating — Standard hard chrome or specify HVOF tungsten carbide, Stellite, or ceramic for severe abrasion
- Shaft Connection — Confirm key and locknut mounting or spline connection; specify shaft diameter and keyway size
- Hardness Requirement — Specify minimum surface hardness if the application has unusual abrasive or adhesive wear conditions
Delivery — 15–30 days after deposit; longer lead time for Hastelloy rotors and specialty coatings
Payment: 70% T/T deposit, balance against copy of B/L. Small orders via PayPal or Western Union.
Contact Us at Any Time
Room 1904, Building 1, Zhongtang Tianan Digital City, No.89 Jinyuan Road, Zhongtang Town,Dongguan City, Guangdong Province, China.
