Description

Rocker 300C Vacuum Pump Price in Bangladesh | Chemical Resistant

If you’re checking the Rocker 300C Vacuum Pump Price in Bangladesh, ASTZ has the genuine unit at ৳42,000, built specifically for labs working with corrosive samples. Unlike a standard piston pump, the 300C uses a PTFE-coated diaphragm chamber, which makes it the go-to choice anywhere chemical exposure is a daily concern rather than an occasional risk.

Specifications

Rocker 300C — Key Highlights

The Rocker 300C is built around a PTFE-coated diaphragm chamber that stands up to a wide range of corrosive gases, paired with an SS#316 valve plate for extra resistance where a standard valve would degrade over time. It’s completely oil-free and maintenance-free, so there’s no lubricant to change or top up. The pump also runs quiet and low-vibration at 50 dB, which matters in a shared lab space, and it includes overheat protection to shut down automatically if it runs too hot, rather than risking damage to the motor.

Compared with a general-purpose lab pump, the Rocker 300C Vacuum Pump in Bangladesh is purpose-built for one job: staying corrosion-free under repeated chemical vapor exposure. That’s the entire reason labs pick the Rocker 300C Vacuum Pump over a standard piston model once corrosive samples enter the workflow. For a technical breakdown of how diaphragm pumps compare with piston and rotary vane designs, see this overview of vacuum pump types.

How the Rocker 300C Works

The 300C uses a diaphragm-driven mechanism instead of the piston-driven design found in the standard Rocker 300. A diaphragm pump moves air by flexing a membrane back and forth rather than using a piston sliding in a cylinder, and that difference is exactly what makes chemical resistance possible — the PTFE coating on the diaphragm is what’s actually in contact with corrosive vapors, not bare metal. Because there’s no piston rubbing against a cylinder wall, there’s also no oil or lubricant needed, which means no scheduled oil changes and less routine maintenance overall. If the pump starts to overheat during extended use, the overheat protection shuts it down automatically and allows it to restart once it’s cooled, protecting the motor without needing operator intervention.

Rocker 300C vs Rocker 300 — Which One to Choose

Choosing between the Rocker 300 and the Rocker 300C comes down to one question: are you pulling corrosive vapors through the pump, or just general aqueous samples?

Rocker 300 — For General Aqueous Samples

The standard Rocker 300 is piston-driven, rated for 105 mbar max vacuum and a 23 L/min (60Hz) / 20 L/min (50Hz) flow rate, drawing 65W / 60W at 0.7A / 0.3A. It’s not built for chemical resistance, but it comes with a longer 2-year warranty and suits general aqueous filtration work where corrosive exposure isn’t a concern.

Rocker 300C — For Corrosive/Chemical Samples

The 300C swaps the piston for a PTFE-coated diaphragm and an SS#316 valve plate, rated for 99 mbar abs. (-630 mmHg) vacuum at the same power draw and flow rate as the 300. It carries a 1-year warranty — shorter than the 300’s, reflecting the added cost of chemical-resistant components — but it’s the only one of the two built to handle corrosive gas exposure without degrading.

For reference, Rocker also makes a DC-powered variant, the Rocker 300DC (piston-driven, DC 12V, 145 mbar max vacuum, 35W, 2-year warranty), aimed at field or bench setups needing a portable 12V power source — not chemical-resistant either, so it falls into the same category as the standard 300 for that purpose.

What Makes the PTFE-Coated Chamber Important

The PTFE coating on the diaphragm chamber is what separates the 300C from every other pump in the Rocker 300 lineup. PTFE resists a wide range of corrosive gases that would otherwise pit or degrade a standard chamber over repeated exposure — though it’s worth noting this resistance doesn’t extend to strong acids or strong alkalis, which need separate handling regardless of pump type. For labs running vacuum filtration on chemical-heavy samples day after day, that PTFE layer is the difference between a pump that lasts years and one that needs replacing within months.

Applications / Where Is It Used?

The Rocker 300C is used in chemical laboratories, vacuum filtration involving corrosive solvents, environmental testing labs, pharmaceutical labs, and any sample preparation work involving aggressive chemicals. Anywhere a standard piston pump would corrode from vapor exposure, the 300C is built to keep running. Bangladeshi pharmaceutical QC labs and university research departments are among the most frequent buyers searching for Vacuum Pump Price in Bangladesh, specifically for corrosive-sample work that a standard pump can’t handle safely.

Why Buy Rocker 300C from ASTZ

ASTZ supplies the genuine Rocker 300C, not a substitute or grey-market unit, with manufacturer warranty coverage and delivery across Bangladesh. If you’re comparing Vacuum Pump Price in Bangladesh listings, the ৳42,000 price at ASTZ includes after-sale support, not just a checkout button.

If you’re also outfitting a lab with related equipment, browse our full vacuum pump collection or check the Rocker 300 product page if your samples don’t require chemical resistance. Whichever model fits your setup, ASTZ keeps the Rocker Vacuum Pump Price in Bangladesh transparent — no hidden charges added at checkout.

Rocker 300C Vacuum Pump Price in Bangladesh — Final Word

At ৳42,000, the Rocker 300C Vacuum Pump remains the only pump in the Rocker 300 lineup built to survive daily corrosive exposure without degrading. For labs where that’s a real risk, it pays for itself the first time it saves a sample run.

Frequently Asked Questions (FAQ)

What is the Rocker 300C vacuum pump used for?

It’s used for vacuum filtration and sample handling involving corrosive gases and chemicals, common in chemical, pharmaceutical, and environmental testing labs.

What is the difference between Rocker 300 and Rocker 300C?

The Rocker 300 is piston-driven and not chemical-resistant, while the Rocker 300C uses a PTFE-coated diaphragm and SS#316 valve plate to resist corrosive gas exposure.

Is the Rocker 300C resistant to corrosive chemicals?

Yes, its PTFE-coated diaphragm chamber and SS#316 valve plate resist a wide range of corrosive gases, though not strong acids or alkalis.

Does the Rocker 300C need oil or lubricant?

No, it’s oil-free and maintenance-free since it’s diaphragm-driven rather than piston-driven.

What is the price of the Rocker 300C in Bangladesh?

The Rocker 300C Vacuum Pump Price in Bangladesh is ৳42,000 at ASTZ, including warranty support.

Does the Rocker 300C come with a warranty?

Yes, it comes with a 1-year manufacturer warranty.

Can the Rocker 300C be operated on an uneven surface?

Rocker doesn’t specify uneven-surface operation for the 300C (confirm before publishing) — as a general rule, vacuum pumps run most reliably on a stable, level surface.