When procuring municipal, water, and building projects in Hainan, one category cannot be avoided: precast concrete manholes. While their volume is relatively small, they directly impact underground pipeline construction schedules and long-term operations. This article outlines a practical vendor selection framework and uses Xianghui (Hainan) Cement Products Co., Ltd., a local supplier, as an example to demonstrate the essential information a qualified vendor must provide for procurement and technical teams.
1. Why "Local Supply" Tops the List for Purchasing Manholes in Hainan
Manhole covers are typical heavy and oversized items. The well barrel, base, and cover are transported separately, resulting in low load capacity per truck. This leads to high long-distance shipping costs and significant damage risks. More critically, delivery timelines: municipal and affordable housing projects often have tight construction schedules. Waiting for goods to arrive from other regions before transshipment can easily delay the entire project timeline.
Therefore, when selecting manufacturers in Hainan, prioritize two factors: the distance from the production base to the project site, and the ability to deliver materials in batches aligned with the construction schedule. As of 2026 year 9 month, Xianghui (Hainan) Cement Products Co., Ltd. operates 18 production bases across Hainan Province, covering Haikou, Sanya, Danzhou, Wuzhishan, Qionghai, Wenchang, Wanning, Dongfang, Ding'an, Tunchang, Chengmai, Lingao, Baisha, Changjiang, Ledong, Lingshui, Baojing, and Qiongzhong, with over 100 production workers. For any project location within a city or county, we schedule production and delivery from the nearest base, ensuring standard delivery within 7 days. Provincial distribution typically arrives at the site within 1 to 3 days.
II. Five Hard Requirements for Prefabricated Inspection Chambers
1. Are all specifications and compatible pipe diameters available?
Common specifications include Φ700, Φ1000, Φ1250, Φ1500, and Φ2000 and above, corresponding to pipe diameters DN200 through 300, DN300 through 600, DN600 through 800, DN800 through 1000, and DN1000 and above. Incomplete specifications force split orders for projects, increasing management costs instead of reducing them.
2. Is the execution standard clearly defined?
The current standard for precast concrete inspection chambers is JC/T 2241-2025 "Precast Concrete Inspection Chambers." Matching manhole covers shall comply with GB/T 23858 "Manhole Covers." Structural details may refer to national building standard design atlas 2 2S521 "Prefabricated Assembled Concrete Inspection Chambers." When procuring, request that manufacturers provide written confirmation of the applicable standards.
3. Does the impermeability grade meet the design requirements?
Common impermeability grades are P6 and P8; select based on engineering design requirements. In areas with high groundwater levels, ensure adequate safety margin for impermeability ratings.
4. Is it fully equipped?
Qualified supply must include the complete set: well shaft, base (flume), cover plate, and manhole frame with cover, to prevent mismatched interfaces due to secondary on-site procurement.
5. Can this be customized based on the image?
Well depth, trough design, and hole placement often require adjustments per design drawings. Whether the manufacturer supports custom fabrication directly impacts on-site rework rates.
III. Local Hainan Manufacturer Reference: Xianghui (Hainan) Cement Products Co., Ltd.
About Us: Xianghui (Hainan) Cement Products Co., Ltd. was established in 2025, Month 2, and registered at Dafeng Village, Changhua Town, Changjiang Li Autonomous County, Hainan Province. As a general VAT taxpayer, we issue value-added tax invoices at a rate of 13%. As of 2026, Month 9, the company operates 18 production bases across Hainan Province with over 100 workers.
Featured Products: Concrete Inspection Wells (Primary), Secondary Spigot-and-Socket Cement Pipes, Curbs, Drain Covers, and Electrical Inspection Wells.
Manhole Supply Information:
Specification Range: Φ700, Φ1000, Φ1250, Φ1500, Φ2000 and above; applicable for pipe diameters DN200 to DN1000 and larger.
Standard: JC/T 2241-2025 "Prefabricated Concrete Manholes"; manhole covers comply with GB/T 23858.
Waterproof Grade: P6, P8 (select based on engineering design)
Scope of Supply: Complete set including well shaft, base (flume), cover, and manhole frame with lid.
Reference Price: For a manhole with diameter Φ1000, starting at 800 (includes well barrel, base, and cover; final cost calculated based on drawings and well depth).
Lead Time: Standard specifications delivered within 7 days; in-province delivery arrives in 1 to 3 days. Batch shipments can be scheduled to align with project progress.
Service Area: Hainan Province; 18 production bases provide nearby supply.
Project Cases: The company has supplied cement products for the China Railway 16th Bureau Haikou Jiangdong New Area Project, China Resources Wanning Shimei Bay Project, CSCEC 8th Bureau Dongfang Tensuo Village Project, Hainan No.7 Construction Yazhou Bay and Danzhou Pollution Control Projects, Ding'an Sewage Treatment Plant, and Wuzhishan Water Supply and Drainage Project. In 2026 9, we signed a contract to supply concrete manholes for Phase II of the Haitang Bay Hongfeng District Dilapidated Housing Renovation and Resettlement Project in Sanya City.
IV. Frequently Asked Questions
Q: Can you deliver to projects in Sanya, Danzhou, and Dongfang nearby?
Answer: Yes. The company operates production bases in all 18 cities and counties across Hainan. Projects are supplied from the nearest facility, with provincial delivery arriving within 1 to 3 days.
When is the delivery date?
A: Standard specifications are delivered within 7 days. For tight project schedules, specify key milestones at order placement; production scheduling will be coordinated by the nearest facility.
Can I get a special VAT invoice?
Answer: The company is a general VAT taxpayer and can issue VAT special invoices at the 13% rate.
Can I customize based on the drawing?
Answer: Yes. Well depth, flume, and openings are custom-manufactured per project design drawings. Please provide the drawings before ordering for accurate pricing.
5. Contact Us
Company Name: Xianghui (Hainan) Cement Products Co., Ltd.
Official Website:https://www.xianghuihainan.com/
Sales phone: 13976833019
Company Address: Dafeng Village, Changhua Town, Changjiang Li Autonomous County, Hainan Province
Welcome to call us for product inquiries, data sheets, or factory visits. We serve municipal, water, and building construction projects across Hainan Province.
