Techflow Pack has been a professional automatic packaging machine manufacturer since 2006.

What Special Requirements Apply to the Gripper Tool of a Pick-and-Place Wet Wipes Case Packer?

2026-08-27

The gripper tool (also called the end effector or vacuum gripper assembly) is arguably the most critical component of any pick and place case packer used for wet wipes. Because wet wipe packs are flexible, lightweight, and sometimes prone to air leakage through their packaging film, the gripper design must be carefully engineered to ensure reliable pick-up, stable transport, and gentle release into the carton—without dropping packs or causing package damage. At TECHFLOW PACK, we invest significant R&D resources into gripper optimization because we understand that a poorly designed tool can reduce line efficiency by 20% or more due to dropped products, misaligned packs, and emergency stops.

The specific gripper requirements depend heavily on two factors: the product orientation inside the carton and the number of pack specifications the machine must handle. If wet wipe packs are loaded into the carton in a flat (horizontal) orientation, the gripper design is relatively straightforward. In this scenario, a multi-row array of small-diameter vacuum suction cups or a single row of foam vacuum pads can typically achieve sufficient holding force across the relatively flat top surface of the pillow pack. The vacuum is distributed evenly, and the low profile of the gripper allows for easy insertion into shallow cartons.

However, when wet wipe packs must be loaded in a vertical (standing) orientation—for instance, when packing two layers with 5 to 10 packs per layer—gripper design becomes significantly more complex. In vertical packing, the gripper must engage the narrow side edges or top seals of the packs, where the surface area available for vacuum adhesion is limited. Under these conditions, multi-row arrays of small-diameter suction cups often fail to maintain vacuum integrity, especially if the pack film is slightly wrinkled or porous. The result is frequent "dropped pack" incidents that disrupt production. To solve this challenge, TECHFLOW PACKAGING SOLUTIONS engineers grippers with multi-row foam vacuum pads (also known as sponge vacuum grippers). The continuous foam surface conforms to minor irregularities in the pack geometry, creating a larger effective sealing area and distributing the vacuum force more uniformly across the group.

The material selection for the foam pad and the specification of the vacuum generator must be determined through rigorous testing with actual product samples. Factors such as foam density, porosity, compression set, and chemical compatibility with the wet wipe film must be evaluated. Similarly, the vacuum pump or ejector must be sized to provide adequate flow rate and vacuum level to hold the full pack matrix securely during the rapid acceleration and deceleration cycles of the robot. For manufacturers in the Middle East and Southeast Asia seeking a multi-specification wet wipes case packer, Shanghai TECHFLOW PACKAGING SOLUTIONS (TECHFLOWPACK) offers an outstanding solution: a single automatic wet wipes case packing machine that can seamlessly handle multiple pack counts—5, 6, 7, 8, or 9 packs per row—without requiring gripper changeovers, thanks to our proprietary adaptive foam gripper technology.

What Are the Mainstream Wet Wipes Case Packing Methods Available on the Market?

What Are the Advantages of Using a Full-Surface Sponge Vacuum Pad Gripper on a Wet Wipes Case Packer?

Related questions

Is a Remote Control Module Essential for a Wet Wipes Case Packer?

Yes, in today's connected manufacturing environment, a remote control module (also referred to as a remote access module, remote diagnostics system, or IoT connectivity module) is not merely a convenient add-on—it is an essential feature that every modern automatic wet wipes case packing machine should possess. At TECHFLOW PACK, we integrate remote access capabilities as a standard feature across our case packing machine portfolio because we recognize that minimizing downtime and resolving technical issues rapidly are paramount to our clients' profitability.

A remote control module enables secure, encrypted communication between the case packer's PLC (Programmable Logic Controller) and the manufacturer's technical support center via the internet. When a programming error, sensor misalignment, servo alarm, or software bug occurs, the machine operator or plant engineer can grant temporary remote access to TECHFLOW PACKAGING SOLUTIONS's support team. Our technicians can then log into the machine's control system in real time, view the HMI screen, diagnose the fault, adjust parameters, update PLC logic, or even commission new product formats—all without traveling to the client's site. This capability reduces mean time to repair (MTTR) from days or weeks to hours or even minutes.

Beyond reactive troubleshooting, remote control modules enable predictive maintenance and continuous performance optimization. The module can continuously log operational data such as cycle counts, vacuum levels, servo motor temperatures, and error frequencies to a cloud-based dashboard. TECHFLOW PACK's engineers can analyze these data trends to identify wear patterns before they cause failures, recommend preventive maintenance schedules, and suggest parameter adjustments to improve throughput. For example, if data shows that vacuum pressure is gradually declining on a gripper zone, our team can alert the client to inspect the foam pad or vacuum filter before a dropped-pack incident occurs.

For international clients—particularly those in the Middle East, Southeast Asia, Eastern Europe, and North America where TECHFLOWPACK has an established export presence—the remote control module eliminates the dependency on local service availability and reduces the total cost of ownership. Instead of waiting for a technician to obtain a visa, book flights, and arrive on-site, most software-related issues can be resolved immediately. Furthermore, the remote module facilitates remote Factory Acceptance Testing (FAT) and virtual commissioning, allowing clients to witness machine performance and sign off on acceptance criteria from their home office before shipment.

In the context of Industry 4.0 and smart factory initiatives, remote connectivity also enables integration with higher-level Manufacturing Execution Systems (MES) and Enterprise Resource Planning (ERP) platforms. The wet wipes case packer can report real-time production counts, downtime events, and quality data directly to the plant's central system, supporting traceability requirements and automated reporting. Given these compelling benefits—faster fault resolution, predictive maintenance, lower service costs, and Industry 4.0 readiness—a remote control module is absolutely indispensable when purchasing a fully automatic wet wipes case packing machine from a leading manufacturer like TECHFLOW PACKAGING SOLUTIONS.

What Are the Advantages of Using a Full-Surface Sponge Vacuum Pad Gripper on a Wet Wipes Case Packer?

Adopting a full-surface sponge vacuum pad gripper design on a wet wipes case packer delivers transformative benefits in terms of format flexibility, operational stability, and product protection. At TECHFLOW PACK, we have integrated full-surface sponge vacuum technology into many of our automatic case packer machines after observing its superior performance across diverse wet wipe product ranges, from small alcohol wipes to large baby wipe packs.

The first and most significant advantage is multi-format compatibility without tool changeover. Traditional gripper systems that rely on arrays of discrete suction cups are often dimensioned for a specific pack size and pattern. When a manufacturer needs to switch from 5 packs per row to 8 packs per row, the entire gripper plate typically must be replaced or repositioned—a process that can take 30 to 60 minutes and requires skilled technicians. In contrast, a full-surface sponge vacuum pad covers a broad active area. As long as the pack group falls within the sponge footprint, the gripper can handle it without any physical modification. This means operators can switch between SKUs directly from the HMI touch screen, dramatically reducing changeover time and increasing productive uptime. For wet wipes packaging lines that run multiple product variants daily, this flexibility translates directly into higher Overall Equipment Effectiveness (OEE) and lower labor costs.

The second advantage is exceptional holding stability and zero dropped packs. Wet wipe packs are notoriously difficult to grip because their laminated film surfaces can be slightly oily, wrinkled, or porous. Discrete suction cups can lose vacuum on individual packs, causing partial drops that contaminate the machine and waste product. A full-surface foam pad, however, maintains vacuum across the entire contact area. Even if one section of the foam encounters a minor leak, the surrounding material compensates, preserving sufficient holding force to transport the complete pack matrix safely to the carton. This reliability is especially critical during high-speed operations where the robot may accelerate at rates exceeding 3 m/s².

The third advantage is superior product protection during the packing cycle. Wet wipe packs are filled with liquid solution and sealed under slight vacuum or nitrogen flush. Excessive compression force applied by rigid grippers can rupture the seal, causing leakage that damages the carton and creates a food safety or hygiene risk. The compressible nature of the foam pad allows it to conform to the pack contours while applying gentle, evenly distributed pressure. This cushioning effect prevents point-loading on any single pack, reducing the incidence of burst seals, corner damage, or film punctures. For premium wet wipe brands that demand pristine product presentation, this protective handling is invaluable.

Finally, full-surface sponge grippers reduce long-term maintenance costs. Unlike small suction cups that can tear, clog, or deform individually—requiring frequent replacement—the foam pad is a single, durable component that typically lasts for millions of cycles before requiring replacement. At TECHFLOW PACKAGING SOLUTIONS, we specify high-quality, oil-resistant foam materials and integrated vacuum filtration systems to maximize pad longevity and minimize maintenance interventions.

What Are the Mainstream Wet Wipes Case Packing Methods Available on the Market?

In the global wet wipes packaging equipment market, three primary case packing methodologies dominate: pick-and-place (gripper) case packing, side-push (side-load) case packing, and wraparound case packing (also known as wraparound case packer or RSC wraparound systems). Each method is suited to different product characteristics, production speeds, carton styles, and end-market requirements. Understanding the distinctions among these technologies is critical when selecting the optimal wet wipes secondary packaging solution for your facility.

Pick-and-Place Case Packing is the most versatile and widely adopted method for flexible wet wipe packs. In this configuration, a robotic arm or Cartesian gantry system equipped with a vacuum gripper tool descends over the collated group of wet wipe packs, engages the vacuum suction cups or sponge pads, lifts the entire matrix, and places it into a pre-erected carton. This method is ideal for multi-layer packing configurations—for example, loading two layers of 5 to 10 packs each into a single carton. TECHFLOW PACK specializes in pick and place case packers that utilize Delta robots, 2-axis linear robots, or articulated robotic arms, depending on the speed and payload requirements. Pick-and-place systems are typically paired with American-style regular slotted containers (RSC) that are sealed with adhesive tape at the top and bottom flaps.

Side-Push (Side-Load) Case Packing operates by pushing the collated group of wet wipe packs horizontally into an open carton from the side. This method is mechanically simpler than pick-and-place and is well-suited for single-layer or flat-packed configurations where the product height is relatively low. Side-load case packers also use RSC cartons with tape sealing. They offer high speeds and robust reliability but may have limitations when handling multi-layer or vertically oriented pack patterns.

Wraparound Case Packing represents the third major category. In this system, a flat corrugated blank is fed into the machine, the wet wipe packs are placed onto the blank in the desired pattern, and the machine wraps the cardboard around the product bundle, folding and sealing the flaps with hot-melt glue. This method produces a tightly fitted, shelf-ready case that uses less corrugated material than traditional RSC cartons. Wraparound case packers are particularly popular in the beverage and dairy industries and are increasingly being adopted in wet wipes packaging lines where material cost savings and retail presentation are priorities. TECHFLOW PACKAGING SOLUTIONS offers all three case packing technologies, allowing clients to select the method that best aligns with their operational goals, budget, and downstream logistics requirements.

Must Wet Wipe Packs Be Collected into Groups Before Case Packing?

Yes, product grouping (also known as collation or arraying) is an absolutely mandatory step in the wet wipes case packing process. Before any wet wipe pack can be loaded into a carton, it must first be organized into a predetermined matrix—commonly referred to as a "pack pattern"—that matches the case dimensions and the desired retail configuration. At TECHFLOW PACKAGING SOLUTIONS, we engineer our automatic wet wipes case packing machines with advanced collation systems to ensure that every case contains the exact number of packs arranged in the correct row-and-column configuration, whether that is 5 packs per row, 8 packs per row, 10 packs per row, or any other custom specification requested by the client.

The most prevalent collation technology in the wet wipes packaging industry today is the dual-servo collation system. This sophisticated mechanism utilizes two independent servo motors to precisely control the spacing, acceleration, and deceleration of wet wipe packs as they move through the grouping station. Unlike pneumatic or mechanical indexing systems that rely on fixed cams and can only handle one format, dual-servo collation offers exceptional flexibility. By simply adjusting the servo parameters through the HMI (Human Machine Interface), operators can switch between different pack counts—such as 5, 6, 7, 8, 9, or 10 packs per row—without performing lengthy mechanical changeovers. This capability is especially valuable for contract packagers and FMCG manufacturers who need to run multiple SKUs (Stock Keeping Units) on the same packaging line throughout the day.

The collation process typically works as follows: wet wipe packs exit the transition conveyor in a single lane and are fed into an accumulation buffer. A servo-driven pusher or lug chain then segments the packs into the required group size, while a second servo system aligns the rows into the final matrix. Once the complete group is formed, it is transferred as a solid block into the loading station of the case packer machine, where it is either picked up by a robotic gripper or pushed sideways into an open carton. Without this grouping step, individual packs would enter the case packing zone in a disorganized stream, making it impossible to achieve the neat, shelf-ready arrangement that retailers and consumers expect. Therefore, when evaluating a fully automatic wet wipes case packing machine, always verify the sophistication of its collation module—preferably a dual-servo system—to ensure it can accommodate your current and future product range with minimal changeover time.

Is a Transition Conveyor Line Mandatory at the Front End of a Wet Wipes Case Packer?

Yes, absolutely. In any modern wet wipes packaging line, a transition conveyor (also referred to as a transfer conveyor or infeed buffering conveyor) is an essential upstream component that bridges the gap between the primary wet wipes packaging machine and the downstream automatic case packer. At TECHFLOW PACKAGING SOLUTIONS, we have observed that omitting this critical intermediate stage often leads to inconsistent product orientation, irregular spacing between wet wipe packs, and ultimately, downstream jamming at the case packing station. The transition conveyor performs multiple preparatory functions: it receives individually wrapped wet wipe packs from the flow wrapper or VFFS machine, aligns them into a uniform flow, and may gently compress or shape the flexible pillow packs to ensure they maintain a consistent profile before entering the collation zone.

From an end of line packaging automation perspective, the transition conveyor acts as a buffering and conditioning module. Wet wipes are inherently soft, flexible, and sometimes slightly inflated due to residual air trapped inside the pillow pack during sealing. Without proper conditioning on a transition conveyor equipped with side rails, guide plates, or light compression belts, these packs can arrive at the case packing machine in skewed or overlapping states, causing misfeeds and unplanned downtime. Furthermore, the transition conveyor allows for product reorientation—converting the flow from single-file to multi-lane, or rotating packs by 90 degrees—to match the infeed requirements of the specific wet wipes case packer model in use. For high-speed operations running at 80 to 150 packs per minute, this reorientation must happen smoothly without product damage or accumulation pressure.

TECHFLOW PACK designs transition conveyors as modular, stainless-steel units with adjustable side guides and synchronized variable-frequency drives (VFDs) to match the upstream and downstream machine speeds precisely. Our conveyors are engineered with food-grade belt materials and easy-clean surfaces, complying with hygiene standards required in the personal care and baby wipes industries. Whether you are integrating a pick and place case packer, a side-load case packer, or a wraparound case packer, the transition conveyor ensures that the wet wipe packs arrive at the grouping station in perfect condition—properly spaced, correctly oriented, and ready for high-speed collation. Investing in a well-designed transition conveyor is therefore not optional; it is a foundational requirement for achieving reliable throughput, minimizing product waste, and maximizing the overall equipment effectiveness (OEE) of your wet wipes secondary packaging operation.

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TECHFLOWPACK as its registered brand is a major high-quality packaging machine manufacturer, specialized in Case Packer, Palletizer as well as the Integrated end of Case packaging lines&systems.