Precision CNC Machined Ductile Iron Scroll Casing Volute Collector for Air Compressors

Name: Precision CNC Machined Ductile Iron Scroll Casing Volute Collector for Air Compressors
Brand: HENAN PROVINCE CHEMICAL MACHINERY MANUFACTURING CO., LTD.
SKU: 1996000181

Henan, ChinaHENAN PROVINCE CHEMICAL MACHINERY MANUFACTURING CO., LTD.

US$2,490.00

1-2 Tons

US$2,330.00

3+ Tons

Product profile

Customization

Available

Type

Chemical Hardening Sand

Casting Method

Thermal Gravity Casting

Model NO.

IL-C03

Sand Core Type

Resin Sand Core

Application

Heavy Industry

Machining

CNC Machining

Material

Gray Iron, Ductile Iron, Cast Steel

Surface Treatment

Customed

Surface Roughness

Ra 0.8-Ra3.2, According to Customer Requirement

Standard

GB, ASTM, AISI, DIN, BS, JIS, NF, as, AAR

Certification

CE, RoHS, ISO 9001:2000, ISO 9001:2008

Materials

Gray Iron / Ductile Iron

Manufacturing Process

Resin Sand Casting + CNC Machining + NDT Inspectio

Casting Capacity

Single Casting Weight: up to 50 Tons

Custom Service

OEM & ODM Manufacturing From Drawings Machining

Quality Assurance

ISO Certified Ut, Mt, PT Dimensional Inspectio

Gas-Tight Integrity

100% Pneumatic & Hydrostatic Holding Test

Internal Flow Path

Aerodynamic Spiral Scroll / Collector Geometry

Machining Precision

Multi-Axis CNC Boring & Mating (±0.05mm Flatness)

Traceability & Nde

En 10204 3.1 Mtc / Optional Ut & Mt Inspection

Transport Package

Heavy-Duty Seaworthy Wooden Case or Steel Frame

Specification

Customized According to Drawings

Trademark

HNHJ

Origin

China

Production Capacity

60000 Tons/Year

Key features

Aerodynamically optimized spiral scroll geometry minimizes gas turbulence and maximizes kinetic-to-static pressure conversion.

Cast from high-density nodular iron with superior fatigue strength to resist continuous thermal stress and pressure pulsation.

Ultra-dense casting microstructure guarantees zero micro-porosity gas leakage under high operating discharge pressures.

High-rigidity frame design maintains strict internal clearances between the impeller, diffuser, and scroll under heavy loads.

Precision bored on multi-axis CNC centers for accurate diffuser ring mounting and seamless interstage assembly.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceYears of Export ExperienceSelf-branded

HENAN PROVINCE CHEMICAL MACHINERY MANUFACTURING CO., LTD.

Henan, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 18 years CertifiedNearest Port: lianyungang portAverage Response Time: ≤0.12h

About Our Factory & Business Background

AddressXiawo Town, Shangjie District , Zhengzhou, Henan, China

Plant Area30857.93 square meters

Number of Employees200

Registered Capital70,000,000 RMB

Terms of PaymentLC, T/T, D/P, PayPal, Western Union, Small-amount payment

International Commercial Terms(Incoterms)FOB, CIF, CFR, EXW

Average Lead TimePeak Season Lead Time: 1-3 months, 3-6 months, 6-12 months Off Season Lead Time: 1-3 months, 3-6 months, 6-12 months

Minimum Order Quantity1 set

Supply Chain Partners30

Our Production Capability & Technical Expertise

Main ProductsAbsorption Tower, Distillation Column,Wind power equipment components

Production Lines1

Production MachinesMedium Frequency Furnace, Luosha Machine, Shot Blasting Machine, Vertical Lathe, Boring Machine, CNC Gantry, Horizontal Lathe

QA/QC inspectors6 people

Inspection Type for Finished Products100% inspection(Visual inspection & Function inspection)

Inspection Method for Finished ProductsHave instruction but no written records

R&D Engineers6 people

Traceability of Raw MaterialsYes

Own BrandYes

Our Industry Experience & Global Business Record

Year of Establishment1996-08-18

Main MarketsEurope, Southeast Asia/ Mideast

Repeat Buyers Choice80%~100%

Number of Foreign Trading Staff1

Overseas Agent/BranchNo

New Products Launched in Last yearYes

Our Certifications, Standards & Industry Recognition

Management System CertificationISO9001:2015, ISO45001:2018, ISO14001

Cooperated with Fortune 500No

Product Q&A

Q:Why is Ductile Iron preferred over Gray Iron for centrifugal air compressor scroll casings?

Centrifugal compressors operate under continuous pressure pulsations, thermal stress, and high gas velocities. Ductile Iron (ASTM A536) provides twice the fatigue limit of Gray Iron, preventing casing fractures and ensuring dimensional stability over long operation cycles.

Q:How do you prevent compressed air leakage through micro-porosity in the casing?

We use optimized gating and feeding systems during casting to ensure dense, defect-free metal solidification. Every scroll casing is tested using both high-pressure hydrostatic testing and pneumatic holding tests to guarantee a 100% gas-tight seal.

Q:Can your scroll casing match our existing diffuser ring and impeller clearances?

Yes. We machine internal scroll profiles, diffuser seating faces, and mating flanges on high-precision CNC boring centers. We hold critical axial and radial tolerances to within microns based on your engineering drawings.

Q:Do you provide material certificates and quality documentation?

Yes, every shipment includes an EN 10204 3.1 Material Test Certificate (MTC) detailing chemical composition, tensile strength, yield strength, hardness, and non-destructive testing (NDT) reports upon request.