Customized Steam Turbine Stator Guide Vane Carrier with High Precision Machining and Thermal Stability

The stator guide blade carrier (guide vane carrier) is a core stationary component of steam turbines. It serves as the installation base for multi-stage stator guide vanes, directing high-temperature & high-pressure steam flow, maintaining precise blade positioning, and withstanding complex thermal stress under continuous operating conditions.

Our customized stator guide blade carriers are engineered to match various industrial steam turbines, cogeneration units, waste heat recovery turbines, biomass power and thermal power generation equipment. We deliver tailor-made solutions based on customer drawings, steam parameters, unit layout and operating environments. The product adopts horizontally split construction as standard design, convenient for assembly, maintenance and on-site overhaul.

We provide a full-chain service covering casting/forging, precision machining, stress relief heat treatment, dimensional inspection and non-destructive testing. All products comply with international industrial standards to guarantee stable long-term operation under extreme temperature, pressure and cyclic thermal load.

• Structure Customization: Support horizontally split two-piece carrier, integrated ring structure and multi-segment combined carriers. We optimize steam path profile, flange structure, sealing groove and vane mounting slot according to turbine flow design.
• Material Customization: Select high-performance heat-resistant cast steel / alloy steel materials upon working conditions: ZG15Cr1Mo1V, ZG20CrMo, 1.0460, 1.7361 and other high-temperature alloys. Materials fit subcritical, supercritical industrial turbine working conditions with excellent high-temperature strength, creep resistance and thermal fatigue resistance.
• Size Customization: Manufacture small industrial turbine carriers to large utility-grade turbine stator carriers. Customizable inner diameter, outer diameter, axial width, bolt hole layout, lifting lugs and auxiliary mounting structures.
• Complete Processing Service: Rough casting → stress relief annealing → CNC precision machining → groove milling for guide vanes → leak test → UT/MT/PT non-destructive testing → finished product delivery. We can supply rough cast blanks, semi-finished carriers or fully machined finished parts.

• Optimized Casting Metallurgical Quality: Controlled casting process minimizes internal shrinkage, porosity and segregation. Homogeneous material structure effectively reduces the risk of thermal deformation and cracking under frequent start-stop cycles.
• High Precision Machining: Precision CNC machining ensures strict tolerances for vane assembly grooves, joint flanges and sealing surfaces. Perfect assembly accuracy guarantees steam tightness and minimizes steam leakage, improving overall turbine efficiency.
• Outstanding Thermal Stability: Custom material selection and structural optimization relieve concentrated thermal stress. The carrier maintains stable geometry under drastic temperature changes, avoiding vibration and vane abrasion.
• Strict Full-Process Quality Control: Raw material chemical composition inspection → mechanical property test → multi-stage non-destructive testing (UT, MT, PT) → final dimensional verification. Complete test reports, material certificates and inspection documents are provided for each product.
• One-Stop Technical Support: Our engineering team offers drawing review, structural optimization proposal, manufacturing progress tracking and after-sales technical service. We also support carrier refurbishment, transformation and spare part customization for old turbine unit upgrades.

• Industrial steam turbines for power generation
• Cogeneration & district heating plants
• Waste heat recovery power generation (steel, cement, chemical industry)
• Biomass and garbage power generation turbines
• Feed pump drive turbines & auxiliary turbine equipment

ISO, ASTM, DIN, GB standards, and special technical specifications provided by customers.

To issue accurate technical proposal and quotation, please provide:

• Design drawing or main dimension parameters
• Operating conditions: steam temperature, pressure, rated rotating speed
• Required material grade
• Structure type: horizontally split / integral ring
• Supply scope: casting blank / semi-finished / fully machined finished carrier
• Required inspection standards, delivery cycle and packaging requirements