The Sharples P-3400 is a high-capacity two-phase horizontal decanter centrifuge rated at 50 GPM with a 25 HP drive generating 3,150 Gs at 4,000 RPM. Dolphin Centrifuge provides parts, rebuilds, and repair from Warren, Michigan.
About the Sharples P-3400
The Sharples P-3400 is the larger-capacity model in the Sharples industrial horizontal decanter centrifuge series, offering greater throughput than the P-3000 while sharing the same proven platform architecture. The P-3400 is suited to higher-volume wastewater treatment plants, larger industrial process streams, and applications where the P-3000's capacity falls short of requirements.
As with the P-3000, the Sharples brand is now part of Alfa Laval, and the P-3400 is supported within the Alfa Laval service network. Dolphin Centrifuge maintains parts inventory and technical expertise for the P-3400 platform, providing rebuild and repair services to plants across North America that continue to operate these machines.
P-3400 Specifications
| Centrifuge Model | Sharples P-3400 |
| Centrifuge Type | Horizontal Decanter, Two-Phase |
| Capacity vs. P-3000 | Higher (larger bowl volume) |
| Separation Configuration | Liquid-Solid (Two-Phase) |
| Rated Capacity | 50 GPM on Ethanol Biomass Separation |
| Bowl Speed | 4,000 RPM (3,150 Gs RCF) |
| Drive Motor | 25 HP |
| Auger Differential Speed | 1–42 RPM |
| Gearbox Ratio | 1:95 |
| Area Equivalent (AE) | 1,500 |
| Conveyor Protection | Carbide Tile or Tungsten Carbide Hard-Surfacing |
| Current Brand Ownership | Alfa Laval (acquired) |
| Service Support | Parts, Rebuild & Repair — Dolphin Centrifuge |
| Typical Applications | Wastewater, Chemical, Industrial Sludge |
Applications
The P-3400 handles the same decanter centrifuge application range as the P-3000, but at higher throughput:
- Municipal wastewater sludge dewatering
- Large-volume industrial effluent treatment
- Chemical process sludge separation
- Biological sludge thickening
- Food processing waste dewatering
- Mining and mineral slurry processing
- Paper and pulp mill sludge
- Rendering and industrial by-products
P-3400 vs. P-3000: When to Choose the Larger Model
The P-3400 is the logical choice over the P-3000 when plant throughput requirements exceed the smaller model's capacity. Higher daily sludge volumes, larger process flows, or the desire to operate a single larger unit instead of two smaller ones are the common drivers. Both models share the same Sharples design philosophy and are fully supported by Dolphin Centrifuge.
For plants evaluating whether to rebuild an existing P-3400 or upgrade to a current-generation decanter, our team can provide a comparative analysis of rebuild cost versus replacement value, spare parts availability, and performance expectations. Explore current-generation Alfa Laval centrifuges as upgrade options. If you need a temporary unit during rebuilding, ask about our decanter centrifuge rental program.
Dolphin Centrifuge P-3400 Rebuild Service
- Complete bowl and scroll assembly inspection and reconditioning
- Bearing replacement and precision alignment
- Scroll wear surface hard-facing and replacement
- Gearbox inspection and rebuild
- Seal replacement and liquid end reconditioning
- Full centrifuge repair and refurbishment services
P-3400 needs rebuild or repair?
Dolphin Centrifuge in Warren, Michigan stocks P-3400 parts and provides complete rebuild services. Contact us for an inspection estimate and rebuild timeline.
Frequently Asked Questions
+ What is the main difference between the Sharples P-3400 and P-3000?
The P-3400 has a larger bowl volume than the P-3000, making it suited for higher-throughput applications. Both models share the same platform architecture and Sharples design philosophy. Choose the P-3400 when sludge volume or flow rate exceeds the P-3000's 25 GPM rated capacity. The P-3400 is rated at 50 GPM with a 25 HP drive motor.
+ Does Dolphin Centrifuge stock parts for the P-3400?
Yes. Dolphin Centrifuge maintains parts inventory and technical expertise for the P-3400 platform, supporting rebuild and repair services for plants across North America that continue to operate these machines.
+ Is the Sharples P-3400 still supported by Alfa Laval?
Yes. The Sharples brand was acquired by Alfa Laval, and the P-3400 is supported within the Alfa Laval service network. Dolphin Centrifuge independently provides rebuild, repair, and parts support for P-3400 units outside the OEM channel.
+ How long does a Sharples P-3400 rebuild take?
A complete P-3400 mechanical rebuild typically takes 3–5 weeks depending on scope — scroll reconditioning, bearing replacement, gearbox overhaul, wear surface hard-facing, seal replacement, and final balance and test. Dolphin Centrifuge provides a detailed scope and timeline after initial inspection of the unit.
+ Can the P-3400 handle ethanol biomass separation?
Yes. The Sharples P-3400 has been used for ethanol biomass separation, with a rated capacity of 50 GPM on ethanol biomass feed. The 3,150 G separation force at 4,000 RPM is effective for dewatering fermentation biomass and other biological solids in ethanol production and bioprocessing applications.
Sharples P-3400 parts, rebuild, and repair — Warren, MI
Dolphin Centrifuge maintains parts inventory and service expertise for Sharples P-3400 and P-3000 decanter centrifuges. Call (248) 522-2573 for immediate support.