Top Cloud-agri DXB-A Electronic Seed Vacuum Pen

Overview

The Top Cloud-agri DXB-A Electronic Seed Vacuum Pen is an ergonomically engineered precision seed handling instrument designed for high-fidelity seed sampling, sorting, counting, and placement in agricultural research laboratories, seed certification centers, and breeding programs. It operates on a controlled low-pressure vacuum principle—generating consistent, adjustable suction via an integrated brushless DC motor and sealed air circuit—to enable non-contact, contamination-free manipulation of intact seeds. Unlike mechanical tweezers or manual picking tools, the DXB-A eliminates direct finger-to-seed contact, thereby reducing cross-contamination risk, minimizing surface abrasion (especially critical for coated, pelleted, or fragile seeds), and enabling reliable handling of small-seeded species such as Brassica napus (oilseed rape), lettuce, carrot, and Arabidopsis thaliana. Its design prioritizes repeatability in seed selection tasks required for germination testing (ISO 5604, ISTA Rules), purity analysis (ISTA 5.1), and single-seed genotyping workflows.

Key Features

• Ergonomic fingertip-actuated suction control: Real-time activation/deactivation via integrated capacitive switch on pen body—no foot pedal or external controller required.
• Dual-tip system: Includes both straight and curved stainless-steel nozzles (autoclavable up to 121 °C, 20 min) to accommodate varied workspace geometries and seed tray configurations.
• Modular suction cup set: Three interchangeable silicone suction cups (diameters: 1.5 mm, 3.0 mm, and 5.0 mm) calibrated for optimal adherence across seed size classes—from 4 mm (e.g., maize kernels).
• Stable low-power vacuum generation: 26 W brushless motor delivers regulated suction force up to 100 g-force with minimal thermal drift, ensuring consistent performance during extended operation (tested per IEC 61000-4-2 ESD immunity standards).
• CE-compliant electrical architecture: 220 V AC input with internal overcurrent and thermal cutoff protection; meets EN 61010-1 safety requirements for laboratory equipment.

Sample Compatibility & Compliance

The DXB-A supports dry, intact, non-sticky seeds with smooth or moderately textured surfaces—including coated, primed, and pelleted varieties—provided surface moisture content remains below 12% (per ISO 6571). It is not intended for use with wet, mucilaginous, or electrostatically charged seeds (e.g., flax, chia). The device complies with key international seed testing framework prerequisites: it enables traceable, operator-independent seed transfer necessary for GLP-aligned purity analysis (ISTA Chapter 5), supports repeatable subsampling for germination tests (ISTA Chapter 6), and facilitates compliant seed counting under ISO 5604:2022 Annex B. All nozzle components are manufactured from medical-grade 316L stainless steel and food-contact-approved silicone—fully compatible with 70% ethanol immersion, UV-C irradiation (254 nm, 30 min), and autoclaving protocols.

Software & Data Management

The DXB-A is a standalone hardware instrument without embedded firmware or digital connectivity. It does not generate electronic records, nor does it interface with LIMS or seed database platforms. However, its deterministic mechanical operation supports audit-ready manual documentation: each use cycle (suction event count, tip type, cup size, operator ID, date/time stamp) may be logged in paper-based or electronic lab notebooks in accordance with ISO/IEC 17025:2017 clause 7.5.2 (control of technical records). For labs operating under FDA 21 CFR Part 11 or EU Annex 11, validation of the DXB-A as a “non-data-generating auxiliary tool” requires documented risk assessment confirming that seed handling integrity—not digital output—is the critical quality attribute.

Applications

• Precision seed counting for official variety trials and certified seed lot release (per OECD Seed Schemes).
• Non-destructive transfer of embryos or delicate seedlings during tissue culture setup.
• High-accuracy sub-sampling for DNA extraction and molecular marker screening (QTL mapping, SNP genotyping).
• Germination test plate loading under controlled environment chambers (ISTA-defined conditions).
• Seed health testing workflows requiring isolation of individual seeds for pathogen detection (e.g., qPCR, ELISA).
• Phenotyping platform integration where seed-level consistency impacts downstream imaging or growth monitoring reproducibility.

FAQ

Is the DXB-A suitable for handling coated or pelleted seeds?
Yes—its adjustable suction force and soft silicone cup options prevent coating damage while maintaining secure adhesion.
Can the suction force be calibrated or adjusted?
No—the device delivers fixed maximum suction (100 g); control is achieved solely through duration and positioning of fingertip actuation.
Does the unit comply with ISO/IEC 17025 requirements for accredited seed testing labs?
It supports compliance indirectly by enabling operator-independent, repeatable handling—but requires documented operational qualification (OQ) per your lab’s SOPs.
What maintenance is required?
Daily wipe-down of nozzle and cup with 70% ethanol; monthly inspection of motor housing seals and electrical cord integrity per manufacturer’s maintenance log template.
Is spare parts support available internationally?
Yes—Top Cloud-agri provides global distribution of certified replacement nozzles, suction cups, and motor assemblies through authorized agricultural instrumentation partners.