Vacuum Dewatering Pump – 7.5HP, Concrete Flooring, 50sqm

The 7.5 HP Vacuum Dewatering Pump is the higher-capacity machine in the range for the Trimix vacuum-dewatered concrete flooring process — it draws excess water out of a freshly laid floor slab through vacuum mats, so the concrete gains strength faster and finishes harder. Its 7.5 HP motor runs at higher power and speed than the 5 HP unit, dewatering roughly 50 sqm in one operation. Electric-motor driven, mounted on a transport trolley.

Key specifications at a glance

• Motor: 7.5 HP electric, continuous discharge
• Dewatering capacity: ~50 sqm in one operation
• Mounting: transport trolley
• Process: vacuum dewatering of concrete flooring (Trimix)

What vacuum dewatering does for a floor

Concrete is mixed with more water than it needs to cure, because the extra water makes it workable enough to place and level. That surplus water is also what weakens the finished slab. The vacuum dewatering process removes it: right after the slab is laid and screeded, vacuum mats are placed over the surface and this pump pulls the excess water out through them before the concrete sets.

Taking that water out lowers the water-cement ratio in the slab, which is what gives a vacuum-dewatered floor its advantages — higher compressive strength, faster early strength (close to 28-day strength reached in about 7 days), a harder, more abrasion-resistant surface, reduced shrinkage and permeability, and cement saving of roughly 15%. The floor can be walked on and finished sooner, so construction moves faster.

Why the 7.5 HP, and which to choose

The pump comes in two motor sizes, and the difference is throughput. The 7.5 HP has more power and higher speed, so it pulls water faster and covers more floor area per operation — about 50 sqm — which matters on large industrial floors where the crew needs to dewater each section within the working window before the concrete stiffens.

• This 7.5 HP pump — higher power and speed, ~50 sqm per operation; for large industrial floors and faster-paced pours.
• 5 HP pump — ~35 sqm per operation; for smaller floor areas and lighter throughput.

Applications

Vacuum-dewatered concrete flooring for industrial floors, warehouses and container yards, runways, railway and metro platforms, canals and pathways, ports and jetty heads, bridges, heavy-vehicle depots and precast concrete products.

Full specifications

Buying, GST and delivery

• Supplied with a GST invoice (18% GST — CGST + SGST within Maharashtra, IGST interstate), ITC eligible
• Sold outright — Jamshedji Constro Equip does not rent or hire equipment
• Dispatched F.O.R. Pune to sites across India, plus export to Bangladesh, UAE, Kenya, Tanzania, Sri Lanka and Nepal
• Backed by a manufacturer founded in 1983, ISO 9001:2015 and MSME/Udyam registered, with 5,000+ clients

Frequently asked questions