What is a pin mill?

A pin mill is a type of industrial grinding machine that uses high-speed rotating discs fitted with rows of intermeshing pins to reduce materials into fine powders through repeated impact and shearing

It works by using two discs fitted with multiple pins—one rotating at high speed and the other stationary or counter-rotating. When material enters the grinding chamber, it is broken down by impact and shear forces generated between the pins.

Pin mills are widely used because they offer:Uniform particle size；High grinding efficiency；Low heat generation；Continuous operation

They are commonly applied in the food, pharmaceutical, chemical, and mineral industries, especially for materials such as spices, sugar, salt, chemicals, and powders that require precise fineness control.

Daftar Isi

• What is a pin mill?
• Why choose stainless steel for the pin mill ?
• How to adjust the output fineness of a pin mill?
• How does a pin mill machine work?
• Apa saja spesifikasi teknis yang umum?
• Di mana saja peralatan ini telah berhasil diterapkan?
• Apa yang harus Anda pertimbangkan sebelum berinvestasi?
• Industri dan aplikasi mana yang cocok dengan sistem ini?
• Manfaat apa yang diberikan oleh pulverizer gabungan + pengumpul debu pulsa?
• How can users extend the machine’s service life?
• How to solve overheating in a pin mill? Which cooling solution is better?

A stainless steel pin mill with a pulse dust collector is a production-scale grinding system that combines a hygienic grinding chamber and an on-board filtration unit. The pin mill reduces bulk solids into fine powder; the pulse dust collector captures airborne fines and automatically cleans its filter media with short bursts (“pulses”) of compressed air. The result is controlled dust emission, stable output and easier compliance with food/pharma hygiene standards.

Why choose stainless steel for the pin mill ?

Baja tahan karat (biasanya 304 atau 316L) dipilih karena beberapa alasan praktis:

• corrosion resistance and chemical inertness — important for food, spice, and pharmaceutical powders;
• permukaan halus yang mudah dibersihkan dan disanitasi (mengurangi risiko kontaminasi silang);
• daya tahan di bawah tekanan mekanis berulang dan abrasi saat memproses bahan abrasif non-ekstrem;
• kompatibilitas peraturan untuk GMP, HACCP, dan kerangka kerja higiene serupa ketika kualitas makanan atau farmasi diperlukan.

How to adjust the output fineness of a pin mill?

The output fineness of our pin mills is primarily and precisely controlled by replacing screen meshes with different aperture sizes. The screen is installed at the outlet of the grinding chamber, allowing only particles smaller than the mesh openings to pass through. We offer a range of screens from 10 mesh to 120 mesh (and finer), enabling customers to easily switch between screens based on the particle size requirements of their final product. This simple and reliable mechanical sieving method ensures stable and controllable adjustment of output fineness.

1. Standalone pin mill (stainless steel body)

• Tapak yang ringkas, lebih mudah dioperasikan, cocok untuk penggunaan dalam jumlah kecil atau laboratorium.
• Memerlukan solusi pengelolaan debu terpisah jika pengendalian debu diperlukan.

M-200

M-300

M-400

M-500

M-600

M-800

2. Integrated system: pin mill + cyclone + pulse dust collector

• Sering kali disediakan sebagai skid tunggal untuk pemasangan yang lebih mudah dan pengoperasian bengkel yang lebih bersih.
• Designed for continuous production: pulverizer → cyclone (coarse separation) → pulse jet baghouse (fine filtration).

Pengumpul Debu Mandiri

Penggiling Dua Tahap dengan Pengumpul Debu

Pengumpul Debu Kotak

Pengumpul Debu Siklon

Pengaya opsional: feed hopper dengan pengumpan terkontrol, saringan getaran setelah penggilingan, port sampel, dan saluran stainless penuh untuk aplikasi makanan/farmasi.

How does a pin mill machine work?

1. Memberi makan — material is fed into the pulverizing chamber via gravity or controlled feeder to ensure even throughput.
2. Penghancuran — high-speed rotors (blades/hammers/pins depending on design) impact and shear the material into smaller particles. Rotor speed and clearance control fineness.
3. Pemisahan primer — a cyclone or centrifugal separator removes coarse rejects and reduces the dust load on the filters.
4. Filtrasi — the remaining fine dust-laden air passes through the pulse baghouse. Periodic compressed-air pulses dislodge cake build-up on filter bags; dust drops into the hopper below.
5. Pembuangan & resirkulasi — cleaned air is exhausted, and collected product is discharged for sieving or packaging. The closed loop reduces product loss and contamination.

Apa saja spesifikasi teknis yang umum?

• Kapasitas: 30–300 kg/h (tersedia modul yang dapat diskalakan)
• Ukuran partikel akhir: 20–120 mesh (adjustable)
• Bahan: Baja tahan karat 304 / opsional 316L untuk bagian kontak
• Jalan: Motor IE2 / IE3inverter frekuensi opsional untuk kontrol kecepatan
• Jenis pengumpul debu: Rumah kantong pulsa-jet dengan siklus pembersihan yang dikendalikan PLC
• Konsumsi daya: tergantung pada kapasitas dan desain rotor (tentukan setelah uji umpan)
• Pilihan: Pemolesan GMP, desain ramah CIP, klasifikasi ATEX untuk zona debu yang mudah terbakar (jika diperlukan)

Parameter Teknis

Di mana saja peralatan ini telah berhasil diterapkan?

• Penggilingan rempah-rempah (Asia Tenggara) — chili, turmeric, coriander: systems sized 150–250 kg/h with full stainless ducting for food safety.
• Ekstrak herbal farmasi (Asia Tengah) — 50–120 kg/h GMP-compliant lines for capsule and tablet feedstock.
• Aditif makanan & bubuk biji-bijian (Afrika) — 200–300 kg/h lines paired with sieving and packaging modules to reduce manual handling and dust exposure.

Apa yang harus Anda pertimbangkan sebelum berinvestasi?

• Karakteristik bahan baku — moisture, oil content, hardness and abrasiveness all change mill selection and maintenance schedule.
• Ukuran dan distribusi partikel target — tight particle specs may require multi-stage grinding + classification.
• Persyaratan keluaran — peak vs average throughput affects feeder and motor sizing.
• Kebutuhan kebersihan dan sertifikasi — food/pharma will need polished finishes, sanitary fittings and traceability.
• Bahaya debu — combustible dust requires special measures (inerting, grounding, ATEX compliance).
• Total biaya kepemilikan — include spare parts, filter bags, energy and expected wear items in the calculation.

Industri dan aplikasi mana yang cocok dengan sistem ini?

• Makanan & rempah-rempah (bumbu halus, gula, pati)
• Obat-obatan (serbuk herbal, eksipien)
• Bahan kimia (pigmen, katalis, pelapis)
• Pertanian (aditif pakan, denda pupuk)
• Aplikasi apa pun yang membutuhkan bubuk halus dan bersih dengan risiko kontaminasi silang yang rendah

Manfaat apa yang diberikan oleh pulverizer gabungan + pengumpul debu pulsa?

• Lingkungan bengkel yang lebih bersih — significant reduction of airborne dust.
• Hasil yang lebih tinggi — less product lost to exhaust and better capture of fines.
• Peningkatan kualitas produk — more uniform particle size and less contamination.
• Paparan operator yang lebih rendah — safer working conditions and easier compliance.
• Perawatan yang disederhanakan — pulse cleaning reduces manual filter cleaning and downtime.

How can users extend the machine’s service life?

• Beroperasi dalam batas ukuran, kelembaban, dan beban umpan yang ditentukan.
• Tetapkan cara pemeriksaan rutin untuk suku cadang yang aus (rotor, pelapis, layar).
• Ganti media filter sesuai jadwal siklus hidup dan periksa katup pulsa secara berkala.
• Jaga agar bearing dan drive dilumasi dengan benar; ikuti spesifikasi torsi dan preload dari pabrik.
• Maintain a controlled feeding method — avoid tramp metal and large lumps.
• Melatih operator tentang prosedur start/stop, penghentian darurat, dan metode pembersihan yang aman.

How to solve overheating in a pin mill? Which cooling solution is better?

To address grinding temperature rise, we offer both rear-mounted high-power fans and water-cooling systems, with a strong recommendation for the former. The key advantage lies in the dual function of our rear fan:

1) Efficient Cooling: The airflow directly removes frictional heat from the grinding chamber, providing significant and uniform temperature reduction.

2) Smooth Discharge: The airflow actively propels and conveys the ground material out of the chamber, effectively preventing fine powder from lingering or clogging.

This integrated “cooling + conveying” design is superior to passive water-cooling in preserving the material’s original color and aroma, while also offering a simpler and maintenance-free setup.