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CNC Machining Industrial Screw Pump Replacement Parts SEEPEX 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.:
MD012-12, Bn05-25, Bn1-2s, Bn2-2s Bn5-2s, Bn10-2s,
Suitable Brand:
Seepex
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:
HydroBlue
Origin:
China
HS Code:
84139100
Production Capacity:
10, 000 Tons Per Year
Highlight:
CNC machining Seepex pump rotor
,industrial Seepex screw pump parts
,Seepex pump replacement rotor parts
Payment & Shipping Terms
Minimum Order Quantity
1
Price
50
Product Description
SEEPEX Rotor – Single-Helix Rotating Element for Progressive Cavity Pumps
About Dongguan HydroBlue Co., Ltd.
DONGGUAN HydroBlue CO.,LTD. is a technology-driven enterprise delivering integrated solutions in fluid machinery, fluid engineering, industrial automation, and variable frequency drive systems. Our team of 8 professionals specializes in fluid engineering, electrical engineering, and electronic engineering, bridging applied research and practical manufacturing. Close collaboration with Jiangsu University, Chinese Academy of Sciences, and Guangdong University of Technology keeps our capabilities at the leading edge in hydraulic development, specialty coating applications, and intelligent industrial drive technologies. Jiangsu University National Research Center of Pumps provides rotor profile optimization and seal trajectory analysis for SEEPEX progressive cavity pump rotors; Chinese Academy of Sciences contributes specialized surface hardening processes and alloy metallurgy research for rotor wear and corrosion resistance; Guangdong University of Technology supports multi-axis CNC machining precision control and in-process optical inspection for rotor helix production.
Provide your pump model and rotor specifications — our team will assess compatibility and come back with a detailed technical proposal.
OUR BRANDS & SERVICES
Our brand delivers complete technical solutions within the fluid machinery and engineering sectors. Through our range of specialized technologies and product brands, we equip our clients with high-level technical advisory, commercial support, and integrated product solutions — covering pumps, frequency converters, servo drives, PLC-HMI, industrial control cabinets, motors, mechanical seals and assemblies, couplings, gearboxes, and turnkey engineering services (overseas on-site 3D scanning reverse molding of pump replacement parts and equipment debugging by our engineers deployed overseas).
Product Overview
SEEPEX Rotor is the single-helix rotating element that forms the internal sealing and pumping core of a SEEPEX progressive cavity pump. The rotor's external single-helix profile rotates eccentrically inside the stator's double-helix elastomer liner, creating sealed cavities that advance axially from the suction end to the discharge end, producing a smooth, continuous, pulsation-free flow of the pumped medium.
The rotor is the component in a PCP that typically wears fastest because it is the moving element in continuous contact with the stationary elastomer liner. Rotor surface condition—hardness, surface finish, and coating integrity—directly affects both the service life of the rotor itself and the wear rate of the stator liner.
SEEPEX rotors are manufactured from a range of materials to suit the specific fluid environment. Standard rotor materials include chrome steel with hard chrome plating, 17-4PH precipitation-hardening stainless steel, 316L stainless steel, and duplex or super-duplex stainless for the most corrosive services. Rotor surface treatments range from hard chrome plating for standard duty to HVOF tungsten carbide, Stellite overlays, and ceramic coatings for severe abrasive or corrosive conditions.
Our SEEPEX replacement rotors are precision-machined from certified bar stock or forgings, CNC-helix turned, ground to final geometry, surface-treated, dynamically balanced, and supplied with full dimensional and material documentation.
Technical Specification
|
Category |
Details |
|---|---|
|
Product |
Rotor (Single-Helix Rotating Element) – SEEPEX progressive cavity pump replacement |
|
Application |
SEEPEX BN, BT, BV series & other PCP models — contact for model compatibility |
|
Rotor Profile |
Single helix; head count, pitch length, helix direction, and lead angle per SEEPEX pump size |
|
Material |
Chrome steel (EN42/SUJ2), 17-4PH SS, SS 316L, Duplex SS, Super Duplex, Hastelloy C276 |
|
Surface Treatment |
Hard chrome plating (65–70 HRC), HVOF WC (70–75 HRC), Stellite 6 (40–50 HRC), Ceramic (Al2O3) |
|
Temperature Range |
Standard: -20 to 150°C; HVOF-coated: up to 350°C; Hastelloy: up to 400°C |
|
Balance Grade |
Dynamically balanced; residual imbalance per rotor size and rotational speed |
|
Shaft Connection |
Key and locknut, Spline drive, Taper fit with drawbolt |
|
Surface Finish |
Ra 0.4–0.8 μm (plated); Ra 0.2–0.4 μm (ground HVOF/Stellite) |
|
Reverse-Engineering |
FARO 3D Laser Scanning for legacy or modified rotor geometry |
|
Inspection |
CMM helix pitch/lead, Hardness, Coating thickness, Balance test, Material & heat treat certs |
|
Certificate |
ISO9001:2015, ISO14001:2004 |
|
Delivery |
15–30 days after deposit |
|
Payment |
70% TT in advance, balance against copy of B/L |
Surface Coating Comparison
|
Coating Type |
Hardness |
Wear Resistance |
Corrosion Resistance |
Cost Index |
Recommended SEEPEX Service |
|---|---|---|---|---|---|
|
Hard Chrome |
65–70 HRC |
Good |
Good |
1.0× (baseline) |
General duty, water, mild abrasion, oils |
|
HVOF Tungsten Carbide |
70–75 HRC |
Excellent |
Very good |
2.5–3.0× |
Severe slurry, high solids, abrasive media |
|
Stellite 6 Overlay |
40–50 HRC |
Very good |
Good |
1.5–2.0× |
High-temp abrasive, corrosive & abrasive mixed |
|
Ceramic (Al2O3) |
80+ HRC |
Outstanding |
Excellent |
3.0–4.0× |
Ultra-severe abrasion, sand, mining slurries |
Why Choose Our SEEPEX Rotors
- Profile Accuracy — Rotor helix geometry is machined to match the original SEEPEX pitch and lead, ensuring the interference fit and seal line progression are maintained throughout the pump
- Coating Process Control — Hard chrome, HVOF, Stellite, and ceramic coatings are applied and finished to specified thickness and surface roughness, with bond strength verified before dispatch
- Dynamic Balancing — Every rotor is dynamically balanced to minimize vibration, extending both rotor life and stator liner service life
- Material Upgrade Path — Standard chrome steel rotors can be upgraded to 316L or duplex stainless for corrosive service, or to HVOF-coated rotors for severe abrasion, without altering the geometry
- Reverse Engineering — For SEEPEX pumps with non-standard or legacy rotor profiles, FARO scanning enables accurate reproduction without original drawings
Contact Us at Any Time
Room 1904, Building 1, Zhongtang Tianan Digital City, No.89 Jinyuan Road, Zhongtang Town,Dongguan City, Guangdong Province, China.
