From the longest vacuum tube ever made (70x2700mm, first supplied to Europe in 2015) to the first online enamel-coating line covering 30-500L tanks — discover how CSP HOLDING GROUP delivers what others cannot.
First-ever manufactured and supplied to Europe in 2015.
Each of these was engineered, patented and produced in-house — verified by international buyers and partners across four continents.
Our 70 x 2700mm tube was the first in the world supplied to Europe in 2015. It enables larger-capacity solar water heaters with fewer tube joints — improving thermal efficiency, reducing installation time, and delivering higher ROI for commercial projects.
We invented the world's first 250mm-diameter Solar Bowl tank — a breakthrough for high-capacity, compact solar water heating systems. Its geometry maximizes heat retention per unit volume while reducing the tank's overall footprint.
CSP built the world's first fully online enamel coating and sintering production line — covering tanks from 30L to 500L in a single continuous process. This eliminates manual transfer, reduces defects, and sets a new benchmark for tank durability.
In partnership with leading Indian manufacturers, we commissioned the world's first dedicated low-pressure solar water heater glass line. This line unlocks local production at scale and supports India's clean-energy goals.
The first automatic glass line inner-tank production line — installed for Supreme Solar, India.
— CSP HOLDING GROUP, 2018
CSP delivered China's first fully-automated electric water heater production line as a single turnkey export — from raw material intake to finished product testing. Buyers receive a ready-to-run line, not a box of parts.
A proven record of innovation, from the longest vacuum tube in 2015 to today's integrated manufacturing systems.
DIA.250mm compact pressure vessel design.
First fully online coating and sintering process.
15 million pieces per year.
World-first low-pressure glass line.
Capacity 500 pcs per 8 hours.
A world-first that still leads the category today.
Every order is engineered, manufactured, tested and shipped from one integrated facility — under one accountability chain.
Five independently documented global firsts — across vacuum tubes, tanks, enamel processes, glass lines and complete production lines.
Founded in the 1990s, CSP has delivered water heaters and production equipment to Europe, America, Africa and Asia.
Glass, vacuum tubes, tanks, enamel — every component is made under one roof, one quality system, one accountability chain.
Active export operations across Europe, MENA, South Asia and Africa — with documentation, certification and after-sales support.
Common questions from European, Indian and MENA buyers.
It is the longest vacuum solar tube ever manufactured, and the first of its length to be supplied to European commercial solar projects in 2015.
Yes. The line covers 30L to 500L tanks on a single continuous process — the first of its kind globally.
Yes. The first low-pressure solar water heater glass line was commissioned in India and serves as a replicable model for emerging-market solar manufacturers and OEMs.
Yes. CSP supports OEM and private-label programs with documentation, certification support and brand-controlled packaging across EU, India and MENA.
Standard orders ship within 30-45 days. Custom OEM configurations depend on specification. Detailed lead times and FOB / CIF options are provided in the formal quotation.
Tell us your project — capacity, target market, and certification needs. Our engineering team will reply within 24 hours with a formal quotation.
Reply within 24 hours. NDA available on request.
