A national highway construction program included 450 km of new dual-carriageway roads across multiple regions. Drainage specification required ID 300mm HDPE double-wall corrugated pipe at high ring stiffness (SN8). Importing finished pipes from China was evaluated and rejected due to logistics cost, lead time risk, and the preference to develop local manufacturing capacity.
The authority issued an RFQ for a complete pipe production line in Q1 2022.
Suba Machinery was introduced through a referral from an existing customer who had been running two Suba lines for three years. The authority's procurement officer and one technical engineer reviewed:
Suba's offer was selected primarily for proven performance in tropical and demanding operating conditions โ high ambient temperatures, variable power supply โ and the availability of a local technical partner for first-line support.
The SL300 production line configuration:
The authority also procured a spare mould set for ID 200mm, enabling future product expansion.
The production line was packed into 2ร40ft HC containers and shipped from Qingdao to Mombasa. Transit time: 22 days. Documentation included HS code declarations, CE certificates, and a detailed inspection report signed during FAT.
Container delivery to the factory site was arranged by the authority's logistics team. Unloading and positioning required a 25-tonne overhead crane, which Suba specified in advance so the customer could arrange it before the containers arrived.
Due to visa processing delays, Suba sent commissioning support via a combination of on-site presence and remote guidance:
Commissioning was completed on schedule. First pipe produced on Day 11 of the on-site visit. All pipe samples passed local bureau of standards dimensional and ring stiffness testing on first submission.
The line has now operated for over 14 months. Key metrics:
The authority met its project milestone: all 450 km of drainage pipes were produced domestically, saving an estimated 30% compared to imported pipe costs.
*"Suba's remote commissioning support was better than we expected. Problems were solved in real time. The line now runs two shifts with our own operators โ no ongoing dependence on any external technician."*
โ Equipment Manager, National Highways Authority
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Suba Machinery exhibits at CHINAPLAS 2026 in Shanghai. See our corrugated pipe extrusion lines live, meet senior engineers, and schedule a technical consultation at the show.
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