In the modern pharmaceutical industry, tablet coating is more than just a cosmetic enhancement — it’s a science that protects, perfects, and transforms. High-efficiency coating machines (also known as tablet coaters) play a critical role in ensuring consistent coating quality, improved product performance, and scalable production.
Among all coating techniques, film coating and sugar coating remain the two most widely used processes. While both techniques serve the same purpose of applying a protective layer to tablets, they vary greatly in terms of how they work, where they are used, and how the market adopts them. Recognizing these distinctions enables manufacturers to choose the optimal coating approach and enhance overall production performance.
1. Prinsip Kerja
1.1. Lapisan film
Film coating is a thin polymer-based coating process in which a solution or suspension containing film-forming polymers, plasticizers, and pigments is sprayed onto rotating tablets inside a perforated coating drum.
As the hot air passes through the tablet bed, the solvent evaporates, leaving behind a uniform, thin, and smooth film layer on each tablet. The process is controlled by precise parameters such as spray rate, inlet air temperature, atomizing pressure, and drum speed.
Modern high-efficiency film coating machines, integrate advanced systems for automatic temperature control, adjustable spray guns, and optimized air circulation, ensuring consistent coating quality even at large production scales.
Key features of film coating
Tipis, smooth coating layer (typically 20–100 microns)
Short coating time
Precise process control
Minimal material waste
Compatible with moisture-sensitive or heat-sensitive tablets
1.2. Lapisan gula
Sugar coating, on the other hand, is the classic technique that has been used for decades in the pharmaceutical and confectionery industries. In this process, tablets are coated with multiple layers of syrup (sugar solution) and other excipients such as colorants, opacifiers, and polishing agents.
The process involves several stages — sealing, subcoating, smoothing, coloring, and polishing — each requiring time and skill. The tablets gradually gain weight and volume as the sugar layers build up.
While modern equipment automates much of the process, sugar coating still demands longer processing times and higher material consumption compared to film coating. Namun, it produces tablets with an appealing glossy appearance and pleasant taste, which are desirable in certain product categories.
Key features of sugar coating:
Tebal, shiny, and colorful coating
Longer production cycle
Excellent taste masking
Traditional and visually appealing finish
2. Application Scenarios
2.1. Lapisan film
Film coating has become the standard coating method for most modern pharmaceutical and nutraceutical products. It offers strong protection and precise functionality while maintaining production efficiency.
Typical applications include:
Functional coating (pelepasan terkontrol, lapisan enterik, moisture barrier)
Herbal and nutraceutical supplements
Tablets requiring rapid coating and high throughput
Film coating is ideal for manufacturers who aim for high productivity, lower costs, and compliance with cGMP standards. The coating process can be smoothly expanded from small-scale trials to full-scale manufacturing, maintaining uniform quality from one batch to the next.
2.2. Lapisan gula
Although film coating dominates today’s market, sugar coating still holds its ground in certain niches. Its aesthetic appeal and taste-masking properties make it popular in nutraceutical, Herbal, and pediatric formulations, as well as in markets where consumer preference favors traditional or glossy tablets.
Typical applications include:
Chewable or flavored tablets
Herbal and traditional medicine
Dietary supplements
Decorative or brand-differentiated products
Selain itu, some companies use sugar coating to preserve brand identity — associating the glossy appearance with heritage, quality, and consumer trust.
3. Performance Comparison: Efficiency, Biaya, and Quality
| Aspek | Pelapisan Film | Lapisan Gula |
| Ketebalan Lapisan | 20–100 µm | 0.5–1 mm |
| Process Time | 1–2 hours | 8–24 hours |
| Weight Gain | 2–3% | 30–50% |
| Biaya Material | Lower | Higher |
| Efisiensi Produksi | Tinggi | Rendah |
| Penampilan | Smooth, matte or glossy | Bright, glossy |
| Menyamarkan Rasa | Sedang | Bagus sekali |
| Functional Coating | Possible (enterik, sustained-release) | Terbatas |
| Market Trend | Growing rapidly | Declining but stable niche |
4. Market Trends
In recent years, film coating has become the global standard, driven by its efficiency, scalability, and environmental benefits. Pharmaceutical companies are moving away from sugar coating due to its long process time, higher labor cost, and lack of functional performance.
Key market trends include:
Automation and digitization: Modern high-efficiency coating machines feature intelligent control systems, real-time monitoring, and recipe management for stable, repeatable results.
Keberlanjutan: Film coating uses less water and energy, aligning with green manufacturing initiatives.
Functional innovation: The rise of enteric coatings, controlled-release systems, and multi-layer coatings expands the role of film coating beyond aesthetics.
Global compliance: Film coating technology meets cGMP, FDA, and EU regulatory standards, supporting international market access.
Meanwhile, sugar coating remains valuable in niche sectors, particularly where consumer experience, color richness, or flavor are marketing priorities — for example, in traditional herbal medicine markets in Asia or in children’s supplements.
5. Memilih Mesin Pelapis Tablet yang Tepat
Pemilihan teknologi pelapisan yang tepat bergantung pada formulasi produk, pasar sasaran, dan tujuan produksi.
Mesin pelapis modern berefisiensi tinggi seperti yang diproduksi oleh Ruidapacking menawarkan fleksibilitas untuk aplikasi pelapisan film dan gula. Dilengkapi dengan:
Sistem semprotan canggih memastikan lapisan seragam
Sirkulasi udara yang dioptimalkan untuk pengeringan cepat
Kontrol suhu dan kelembaban yang cerdas
CIP (Pembersihan di Tempat) sistem untuk memudahkan pemeliharaan
Fitur-fitur ini membantu produsen mencapai kualitas pelapisan unggul sekaligus meminimalkan waktu henti dan limbah produksi.
Pelapis efisiensi tinggi RD-HGBY-80 dirancang untuk farmasi, nutraceutical, dan aplikasi makanan, memberikan solusi pelapisan yang menyeimbangkan kecepatan tinggi, ketepatan, dan fleksibilitas. Apakah tujuan Anda adalah menyempurnakan tampilan tablet atau mengembangkan pelapis fungsional, kami menawarkan teknologi andal yang disesuaikan dengan kebutuhan Anda.
6. Kesimpulan
Lapisan film dan lapisan gula mewakili dua era teknologi pelapisan tablet — yang ditentukan oleh efisiensi dan fungsi, yang lainnya berdasarkan seni dan tradisi.
Sementara pelapis film memimpin pasar modern dengan kecepatannya, presisi, dan keberlanjutan, lapisan gula terus bersinar dalam aplikasi khusus yang menghargai estetika dan rasa.
Untuk produsen, pilihan yang tepat bergantung pada keseimbangan antara efisiensi produksi dan preferensi pasar. Dan dengan evolusi mesin pelapisan efisiensi tinggi, kini kita bisa menguasai keduanya — melestarikan keindahan masa lalu sambil merangkul inovasi masa depan.
