Chongqing Huanxiang Industrial. Co., Ltd.
| Processing service | Raw material forging -> stress relief heat treatment -> rough machining -> finish CNC turning & boring -> surface treatment -> UT/MT/PT non-destructive testing -> final dimension inspection |
| Non-destructive testing | UT/MT/PT |
| Material options | 4140 (42CrMo4), 4340, 35CrMo, 25Cr2MoV, heat-resistant stainless steel |
| Structural types | Integral cylindrical sleeves, flanged bushings, stepped sleeves, split bushings, grooved sealing sleeves |
| Surface roughness | Ultra-smooth inner bore surface |
| Dimensional tolerance | Tight dimensional tolerance |
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Product Specification
| Processing service | Raw material forging -> stress relief heat treatment -> rough machining -> finish CNC turning & boring -> surface treatment -> UT/MT/PT non-destructive testing -> final dimension inspection | Non-destructive testing | UT/MT/PT |
| Material options | 4140 (42CrMo4), 4340, 35CrMo, 25Cr2MoV, heat-resistant stainless steel | Structural types | Integral cylindrical sleeves, flanged bushings, stepped sleeves, split bushings, grooved sealing sleeves |
| Surface roughness | Ultra-smooth inner bore surface | Dimensional tolerance | Tight dimensional tolerance |
| High Light | high precision steam turbine bushing ，high-temperature resistant turbine sleeve ，customized power plant bushing | ||
Steam turbine bushing (also known as turbine sleeve) is a critical friction and guiding stationary component widely deployed on steam turbine governing valves, main stop valves, rotor assemblies and gland sealing systems. It provides precise radial positioning, reduces rotational friction, bears alternating mechanical loads and adapts to continuous high-temperature steam environments.
Our company supplies fully customized turbine bushings & sleeves manufactured strictly according to customer drawings, dimension requirements and working conditions. Products cover stem bushings, journal sleeves, gland seal bushings, flanged guide sleeves and segmented bushings. Materials can be tailored for low, medium and high-pressure turbine units.
The components adopt precision forging followed by CNC finishing, achieving ultra-smooth inner bore surface and tight dimensional tolerance to guarantee stable operation and extend service life.
We produce integral cylindrical sleeves, flanged bushings, stepped sleeves, split bushings and grooved sealing sleeves. Customize inner/outer diameter, length, chamfer, oil grooves, sealing grooves and mounting shoulders as per turbine flow design.
High-strength alloy steel forging options for different temperature working environments: 4140 (42CrMo4), 4340, 35CrMo, 25Cr2MoV, heat-resistant stainless steel and other alloy materials. Materials feature outstanding high-temperature strength, wear resistance and thermal stability.
Support small-size valve stem bushings for industrial turbines up to large-diameter sleeves for power station steam turbines.
Raw material forging → stress relief heat treatment → rough machining → finish CNC turning & boring → surface treatment → UT/MT/PT non-destructive testing → final dimension inspection. We can deliver forged blanks, semi-finished machined parts or fully finished bushings.
Dense internal metallurgical structure after precision forging, effectively avoids internal defects such as porosity and inclusions, greatly lowering cracking risk under long-term alternating temperature load.
Precision CNC boring and turning ensures strict concentricity, cylindricity and surface roughness. Smooth inner bore minimizes friction loss, effectively prevents shaft scratch and abrasion.
Matching material selection according to operating temperature. The bushings maintain stable geometry under frequent unit start-stop and temperature fluctuation, reducing maintenance frequency.
Raw material composition test → mechanical property inspection → multi-stage non-destructive testing → final dimensional verification. Complete material certificates and inspection reports are provided for every batch.
Our engineering team supports drawing review, structural optimization suggestion, production progress tracking and after-sales technical consultation. We also provide replacement spare bushings for old turbine retrofitting projects.
ISO, ASTM, DIN, GB standards and special technical specifications proposed by customers.
| Engineering drawings or key dimension parameters | Working conditions: operating temperature, pressure, rotating speed |
| Required material grade | Structural type: integral / split / flanged bushing |
| Supply scope: forging blank / semi-finished / fully finished product | NDT requirements, delivery cycle and packaging requirements |
Company Details
Business Type:
Manufacturer
Year Established:
2017
Total Annual:
20000000usd-25000000usd
Employee Number:
50~100
Ecer Certification：
Verified Supplier
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