Buying an underpad making machine is a high-stakes purchase. The machine decides your daily output, your product quality, your production cost and, ultimately, whether your factory can compete in a market where medical and nursing pads are bought in millions of pieces. Yet most buyers start their search facing the same problem: dozens of suppliers claim to be manufacturers, machine prices vary wildly, and technical terms like "full-servo" or "ultrasonic sealing" are thrown around without much explanation.

This guide solves that problem in three steps. First, it explains what this equipment actually does and what makes a modern production line reliable. Second, it gives a practical checklist for evaluating an underpad machine manufacturer. Finally, it profiles eight established manufacturers and suppliers serving this market, with a neutral comparison table to help you shortlist suppliers for your own due diligence.

Key Takeaways

• Know the technology first: a modern underpad making machine combines unwinding, core lamination, edge sealing, cutting and folding in one continuous line — the sealing method and servo control quality matter more than brand names.

• Full-servo control is the reliability benchmark: independent servo motors with automatic tension control prevent material stretching and keep output stable, which directly affects defect rates.

• Ultrasonic sealing improves both quality and comfort: it creates soft, leak-proof edges without hard glue lines — an important factor for medical, elderly-care and baby-adjacent products.

• Eight manufacturers worth evaluating: this guide profiles four China-based manufacturers (including JUJIN) and four international manufacturers from Italy, the USA and Japan, covering different price tiers and technology levels.

• Buy from a manufacturer, not just a supplier: source-level underpad machine manufacturers usually offer better pricing, faster technical response and more honest customization support than trading companies.

What Is an Underpad Making Machine?

An underpad making machine — also called an underpad manufacturing machine or medical underpad production line — is automated converting equipment that produces disposable absorbent pads from rolls of raw material. Underpads are the waterproof-backed absorbent sheets used under bedridden patients, in maternity wards, in elderly and incontinence care, and in pet training trays.

A finished underpad is a three-layer product: a soft top layer (non-woven fabric), an absorbent core (tissue or cotton pulp), and a waterproof bottom layer (PE film). The machine turns all three raw materials into finished, folded pads in one continuous process.

How a Modern Underpad Production Line Works

1. Unwinding: multiple rolls — absorbent tissue or cotton, non-woven top sheet and PE film — are fed into the line under controlled tension.

2. Core positioning and lamination: the absorbent core is positioned and bonded to the film layer so it stays locked in place during use.

3. Edge sealing: longitudinal (lengthwise) and transverse (crosswise) edges are sealed. On modern machines this is done with ultrasonic welding, which fuses the layers without glue lines.

4. Cutting: the continuous web is cut into individual pads at the specified length and width.

5. Folding and stacking: pads pass through a horizontal folding system (typically 3-fold) and exit in a compact stack, ready for counting and packaging.

On a full-servo machine, each of these stations is driven by independent servo motors with automatic tension control, which keeps the material flat and stretch-free at speed. This is the single biggest difference between a modern full-servo line and older mechanical designs, which are prone to material stretching and misalignment.

How to Choose a Reliable Underpad Machine Manufacturer

Before comparing individual suppliers, it helps to define what "reliable" means for an underpad machine manufacturer. These five points cover the areas where quality differences show up in daily production.

1. Full-Servo Control and Production Stability

Ask how many servo axes the line has and how tension is controlled. Independent servo motors with automatic cylinder-driven tension control allow zero-tension unwinding of both the film and the absorbent core, which prevents stretching and keeps production speed stable. A line that cannot hold stable tension will produce inconsistent pad sizes and higher defect rates, no matter how fast its nameplate speed looks.

2. Sealing Technology and Leak-Proof Performance

Check how the machine seals its edges. Glue-based or thermal sealing can leave hard, stiff lines that irritate skin — a real problem for medical and elderly-care products. Ultrasonic welding, by contrast, fuses the material layers with high-frequency vibration, producing soft, strong, leak-proof edges with no glue lines. For medical underpads, ultrasonic sealing on both longitudinal and transverse edges is the standard you should look for.

3. Size Flexibility and Folding

Different markets buy different pad sizes, and your production plan may change after purchase. A good machine lets you adjust finished pad length and width by inputting parameters on a touchscreen, rather than by mechanical rework. Also check the folding system: a reliable 3-fold horizontal mechanism keeps pads neat, compact and bag-ready, while poorly designed folding systems jam at high speed.

4. After-Sales Support, Warranty and Delivery

Machinery breaks down eventually, and the quality of after-sales support decides how much downtime you lose. Look for clear warranty terms on mechanical parts, video installation tutorials, and the option of on-site engineer dispatch. For international buyers, check how the machine is packaged for sea freight — professional suppliers use anti-rust treatment, vacuum film and fumigation-free plywood cases.

5. Manufacturer vs. Trading Company

Many "suppliers" in this industry are trading companies that resell machines from third-party factories. Buying directly from a source-level underpad machine manufacturer usually means better pricing, direct technical communication, and honest answers about customization and limitations. When you shortlist candidates, verify their factory — ask for factory tour videos, machine testing records and references.

The 8 Established Underpad Making Machine Manufacturers and Suppliers

The manufacturers below are selected because they are frequently referenced in the disposable hygiene machinery market and cover a useful range of geographies, price tiers and technology levels. The list is not a ranking of quality — descriptions are factual and neutral, and every buyer should perform their own verification before purchase.

1. JUJIN (Changzhou Jujin Automation) — China

JUJIN is a China-based underpad machine manufacturer headquartered in Changzhou, Jiangsu Province. Founded in 2008 and ISO certified, the company reports more than 18 years of manufacturing experience, 1,000+ production lines delivered and customers in 50+ countries. Its core product for this segment is the full-servo medical underpad production line (model JJCWD-28-40), which runs at a stable 100 pieces per minute with ultrasonic longitudinal and transverse sealing, multi-layer lamination and an automated 3-fold system. JUJIN is also the holder of patented horizontal folding technology and offers custom design across medical, hygiene, food packaging and hospitality disposables.

2. PEIXIN International Group — China

PEIXIN International Group is based in Quanzhou, Fujian Province — one of China's main clusters for hygiene machinery. Established in 1985, the group is one of the larger Chinese enterprises specialized in production lines for daily-use hygiene products, including baby diapers, adult diapers, sanitary napkins and pet training pad equipment. Its long operating history and scale make it a widely referenced name in the industry.

3. Zhejiang New Yuhong Intelligent Equipment — China

Zhejiang New Yuhong Intelligent Equipment Co., Ltd., based in Hangzhou, Zhejiang Province, is a subsidiary of CSG Smart Science & Technology (SHE: 300222). The company has nearly 30 years of design and manufacturing experience in disposable hygiene machines, including underpad machines and adult and baby diaper production lines, and supplies machines to customers worldwide.

4. Jiangsu Jinwei Machinery (JWC) — China

Jiangsu Jinwei Machinery is part of the Jinwei Group, established in 1996, which operates across intelligent hygiene equipment manufacturing, product R&D and raw material supply. Its JWC series equipment covers baby care, adult care, female care, pet care and medical care products, including full-servo medical care pad equipment in 3-layer and 5-layer configurations.

5. GDM — Italy

GDM S.p.A. is an Italian manufacturer of automated converting and packaging lines for disposable hygiene products, with four decades of industry experience. Notably, GDM maintains a dedicated product range for disposable underpads, with line models rated at roughly 300, 500 and 750 pieces per minute — among the higher speed tiers in the market, aimed at large-volume industrial producers.

6. Fameccanica — Italy

Fameccanica is an Italian automation group, part of Angelini Technologies, focused on automated production lines for absorbent hygiene products and consumer goods. The company positions itself as a leading developer of converting technology for hygiene and personal care applications and serves a global industrial customer base.

7. Curt G. Joa — USA

Curt G. Joa, Inc., founded in 1932, is a North American manufacturer of disposable hygiene machine platforms. The company engineers converting machinery for disposable hygiene, absorbent and medical products, including platforms for adult pants and sanitary napkins, and is recognized as one of the pioneers of automation in the hygiene converting industry.

8. ZUIKO Corporation — Japan

ZUIKO Corporation is a Japanese manufacturer of machines for disposable hygiene products, including diaper and feminine napkin production lines and related consulting services. The company states that it holds about 90% of the Japanese market for hygiene product manufacturing machines, underlining its strong position in the domestic market and its global presence with factories in Japan, China and Brazil.

For reference on the high-speed end of the market, an Italy-based manufacturer of dedicated underpad converting lines publishes model speeds up to 750 pieces per minute; for the automation-systems side, a European automation group specializing in absorbent hygiene lines covers the same product family. Two further established references in the disposable hygiene machinery field are a North American pioneer of disposable hygiene converting machinery and a Japanese manufacturer of disposable hygiene product machines. Note that speed is only one variable — product quality, changeover flexibility and uptime matter just as much.

Representative Machine Specifications: A Full-Servo Underpad Production Line

To make the technology concrete, the table below shows the published specifications of a representative full-servo medical underpad production line — the JJCWD-28-40 from JUJIN. It illustrates the level of detail you should expect from a professional manufacturer's datasheet.

Full Servo Medical Underpad Production Line

100 pcs/min, ultrasonic edge sealing, multi-layer lamination, automatic 3-fold. Model JJCWD-28-40.

View Product

Automatic Medical Transfer Pad Machine

Large-format patient transfer pads up to 1070 mm wide, dual-roll feeding, ultrasonic hemming. Model JJHYD-110-150-2.

View Product

Final Thoughts

Choosing an underpad making machine is ultimately a question of matching technology to your market. Verify the servo system and tension control, insist on ultrasonic sealing if you serve medical or elderly-care markets, confirm size flexibility and folding quality, and check after-sales support before you sign. Use the eight manufacturers above as a starting shortlist, request real-material test evidence, and compare total cost of ownership — not just the base price.

If you are looking for a reliable underpad machine manufacturer that combines full-servo precision with factory-direct pricing, JUJIN (Changzhou Jujin Automation Equipment Co., Ltd.) is a supplier worth contacting. With 18+ years of manufacturing experience, ISO certification, patented horizontal folding technology and customers in more than 50 countries, JUJIN builds full-servo medical underpad production lines that run at a stable 100 pieces per minute with ultrasonic leak-proof sealing — and supports every delivery with a 12-month mechanical parts warranty, installation videos and optional on-site engineers. Send your inquiry for a datasheet, sample output video and a quotation tailored to your production plan.

FAQ: Underpad Making Machine Manufacturers

What is an underpad making machine?

An underpad making machine is an automated converting line that turns rolls of absorbent tissue or cotton, non-woven fabrics and waterproof PE film into finished medical or nursing underpads. It combines unwinding, core positioning, lamination, sealing, cutting and folding in one continuous process.

How fast can an underpad making machine produce?

Production speed varies by machine design and product size. Entry-level and mid-range full-servo lines typically run at 60–100 pieces per minute, while high-speed industrial lines from some European manufacturers can exceed 300 pieces per minute. Speed should be matched to your product quality requirements, not maximized blindly.

What is the difference between ultrasonic sealing and glue sealing on an underpad machine?

Glue or thermal sealing bonds edges with adhesive or heat, which can leave stiff or hard lines. Ultrasonic sealing uses high-frequency vibration to weld material layers together, producing soft, smooth, leak-proof edges without glue lines — a key comfort factor for medical and elderly-care underpads.

What sizes of underpad can the machine produce?

Typical full-servo underpad production lines produce finished pads of about 300–400 mm in length and 200–280 mm in width, with parameters adjusted through a touchscreen interface. Always confirm the size range with the manufacturer against your target market's specifications.

How much does an underpad making machine cost?

Prices vary widely with configuration, speed, servo count, sealing technology and brand. A useful rule is to request detailed quotations from several manufacturers and compare the included scope — warranty, installation support, training and spare parts — rather than comparing base prices alone.

Can one underpad machine produce pet training pads as well?

Yes, in many cases. Medical underpads and pet training pads share the same multilayer absorbent structure — an absorbent core laminated to a waterproof backing. A flexible full-servo line with adjustable sizing can switch between nursing pads, maternity pads and pet training pads on the same equipment.