Uni Power Tank SN-200PT Ballpoint Pen

Uni Power Tank SN-200PT Pressurized Ballpoint Pen

Engineered for demanding field environments, outdoor job sites, and fast-paced desks, the Uni Power Tank SN-200PT solves the universal frustration of standard ballpoint pens failing at awkward angles or in harsh weather. Built around a sealed internal chamber pressurized to 3,000 hectopascals (hPa), this high-performance writing instrument continuously forces rich oil-based ink directly to the precision tungsten carbide ball. Whether marking vertical clipboards, signing damp invoices in the rain, or drafting notes in sub-zero workshops, the SN-200PT delivers clean, uninterrupted lines every time you click.

Key Features

• Pressurized Air Chamber Technology: Internal 3,000 hPa compressed air reservoir guarantees continuous ink feed upside down, vertically, or at any angle.
• Extreme All-Weather Reliability: Formulated oil-based ink writes seamlessly on damp or wet paper and resists freezing down to -20°C (-4°F).
• High-Traction Ergonomic Grip: Contoured rubber sleeve provides fatigue-free handling and reliable slip resistance, even with wet hands or heavy work gloves.
• Sturdy Retractable Push-Button: Positive-click deployment mechanism protects pocket liners, paired with a durable integrated pocket clip.
• Refill-Ready Translucent Barrel: Tinted body casing allows immediate visual inspection of remaining pressurized ink volume.

Specifications

• Brand: Uni (Mitsubishi Pencil Co.)
• Model: SN-200PT (Power Tank Series)
• Pen Type: Pressurized Retractable Ballpoint Pen
• Ink Type: High-density oil-based ballpoint ink
• Barrel Length: Approx. 145 mm
• Grip Material: Textured elastomer rubber
• Country of Origin: Japan

Frequently Asked Questions

Can the Uni Power Tank really write upside down?
Yes. Unlike gravity-fed ballpoints that starve when inverted, the internal 3,000 hPa pressurized cartridge pushes ink forward constantly, making overhead and vertical writing effortless.

Will it write on wet or glossy paper?
Yes. The pressurized delivery system pushes past moisture and light surface coatings, preventing skips and water-induced cartridge drying on damp checklists and field notebooks.

Is the SN-200PT refillable?
Yes. The pen accommodates standard Uni Power Tank SNP-series pressurized ballpoint refills (such as SNP-5, SNP-7, and SNP-10), allowing long-term sustainable use.

How should I store this pen when not in use?
Simply retract the tip using the top push button to avoid accidental marks. Because the cartridge is sealed under internal pressure, it can be stored horizontally, vertically, or in utility kits without leaking.