Direct manufacturing facilities for automated suspension roller lines, vertical rising-core vibration systems, and custom precast concrete pipe steel molds. Exported directly from our Qingzhou (Shandong) and Yangzhou (Jiangsu) production bases to global markets.
Centrifugal roller compaction, smooth hydraulic bore, low energy consumption
Heliyuan supplies end-to-end production line engineering. Every machine is synchronized to balance cycle times, minimize labor, and achieve maximum plant throughput.
Structural Rebar FormingLongitudinal bars and continuous spiral wire are resistance-welded automatically with programmable pitch (50�?50mm), ensuring rigid cage geometry for heavy loads.
Dry-Cast Mix PreparationTwin-shaft planetary mixing system delivers precise water-cement ratio (0.30�?.34) zero-slump concrete for instant structural compaction without mold sagging.
Intense Dynamic CompactionHeavy roller suspension or high-frequency core vibration applies intense radial centrifugal compaction, fully consolidating concrete and squeezing out air voids.
Precision Joint AlignmentAnnealed Q345B steel formwork ensures bell & spigot joint circularity within ±1.5mm. Vertical dry-cast systems allow immediate core extraction in 3�? minutes.
Standard Quality VerificationFinished concrete pipes undergo standard three-edge bearing tests (0.01-inch crack load) and 0.1 MPa hydrostatic water pressure testing to confirm high impermeability.
Receive complete plant CAD foundation drawings, electrical load schedules, raw material batching calculations, and turnkey machinery proposals tailored to your property size.
Engineered for severe continuous duty in precast concrete manufacturing plants. Every machine is manufactured directly in our Qingzhou facility using heavy-gauge structural steel and internationally supported electrical switchgear.
The proven global standard for producing small-to-medium stormwater culverts and highway drainage pipes (DN200–DN2000). Centrifugal rolling compaction forces out excess water and entrapped air, producing a mirror-smooth inner hydraulic surface with low Manning roughness coefficient.
Fabricated from high-tensile Q345B alloy steel plates and heat-treated in a 600°C electric furnace to eliminate residual welding stresses. Heavy CNC-lathed joint end rings ensure tight rubber gasket fitment and prevent groundwater infiltration.
Engineered for high-volume manufacturing of municipal stormwater mains, deep sewer pipelines, and trenchless jacking pipes (DN600–DN3000). High-frequency internal core vibration achieves complete consolidation with immediate hydraulic core extraction, allowing 1 mold to yield 60+ pipes per 8-hour shift.
Replaces manual rebar tying and welding. The automated spiral cage former pulls and resistance-welds longitudinal steel bars with continuous spiral rebar at CNC-controlled variable pitches, strictly adhering to ASTM C76 structural reinforcement schedules.
Explore all 8 specialized precast machinery and custom tooling lines manufactured by Heliyuan.
Heliyuan concrete pipe production lines and precision steel molds are engineered to produce finished pipes fully compliant with major international standards.
| Standard & Jurisdiction | Designation & Typical Application | Mandatory Load & Water Testing | Heliyuan Equipment Compliance |
|---|---|---|---|
| ASTM C76 / C76MUSA, Americas & Middle East | Reinforced Concrete Culvert, Storm Drain, and Sewer Pipe | Three-Edge Bearing D-Load (0.01 in. crack & ultimate), 10 min Hydrostatic | Full Machine & Steel Mold Compliance Guaranteed |
| BS 5911-1 / EN 1916UK, Europe, Africa & Commonwealth | Concrete Pipes and Fittings, Unreinforced and Reinforced | Crushing load test, watertightness at 50 kPa internal hydrostatic pressure | Full Machine & Steel Mold Compliance Guaranteed |
| DIN V 1201 / DIN EN 1916Germany & Central Europe | Precast Concrete Jacking Pipes & Deep Sewer Mains | Triaxial loading, longitudinal jacking thrust test (1500+ kN), water absorption �?6% | Full Machine & Steel Mold Compliance Guaranteed |
| AS/NZS 4058Australia & New Zealand | Precast Concrete Pipes (Pressure and Non-Pressure) | Proof load test, ultimate load test, cover depth verification (�?20mm) | Full Machine & Steel Mold Compliance Guaranteed |
| GB/T 11836-2009China National Standard & Belt & Road | Concrete and Reinforced Concrete Drainage Pipes | External load crack load, 0.1 MPa hydrostatic watertight test | Factory Standard Execution with Tolerance Verification |
Exporting heavy precast concrete equipment worldwide requires specialized sea-fastening, anti-corrosive coating, and container stowage plans. See actual dispatches from our factories.
High-tonnage roller mainframe lashed with certified steel wire turnbuckles and treated pine timber cribbing for trans-oceanic transit.
Nested delivery of DN1000 and DN1500 steel culvert molds with VCI anti-corrosion barrier wrapping and IMO CTU container floor blocking.
Complete CNC cage forming assembly with hydraulic feeder tracks, spare copper welding electrodes, and multilingual PLC cabinets.
Heavy prefabricated box culvert shuttering panels hoisted and secured with heavy weather-resistant covers, direct vessel departure from Qingdao.
Unlike export trading middlemen, HLY owns and operates heavy machine tooling and fabrication bases in Qingzhou (Shandong) and Yangzhou (Jiangsu), encompassing Large Scale² of specialized workshops.
Sub-millimeter CNC cutting precision for Q235B and Q345B high-tensile steel plates up to 50mm thickness, ensuring minimized micro-cracks and precise weld joint alignment.
Precision turning of heavy suspension roller shafts and pipe mold drive rings up to 8000mm length, ensuring radial runout is kept under 0.05mm for vibration-free rotation.
Every large-diameter steel pipe mold and heavy machine chassis undergoes full-chamber electric heat treatment to release residual welding stresses, preventing deformation.
Prior to overseas containerization, each concrete pipe machine runs for consecutive hours under mechanical load with vibration frequency and bearing thermal logging.
We welcome international clients and third-party inspection agencies (SGS, TÜV, BV) to our workshops for live demonstration runs and dimensional CMM verification.
Authoritative technical procedures based on factory shopfloor practices, ASTM C76, and GB/T 11836 standards. Master concrete pipe compaction, mold maintenance, and steam curing.
Suspension roller pipe making machines are the global workhorse for producing high-density reinforced concrete pipes (DN300–DN2000). This comprehensive factory guide covers the end-to-end production workflow, from aggregate grading and CNC cage welding to dual-speed roller compaction and 4-stage steam curing.
Choosing between suspension roller compaction and vertical rising-core vibration determines your plant's capital layout, mold budget, and daily pipe output. We compare mechanical compaction dynamics, labor requirements, diameter capabilities, and total ROI.
Structural integrity under ASTM C76 D-load testing depends on the precision of the reinforcing cage. Learn how CNC roll welders automate cage fabrication, enforce pitch tolerances, and eliminate hand-tying inconsistencies.
Essential guidance on machine selection, production cycle times, steel mold longevity, and overseas turnkey installation.
Consult directly with our Chief Precast Equipment Engineer. Receive customized plant layouts, machine sizing calculations, and factory-direct commercial quotations promptly.
