NJP-2500C Automatic Capsule Filling Machine — 150,000 Capsules/Hour
The NJP-2500C fills 150,000 capsules an hour on eighteen dosing bores. It’s the model for brands running a small number of SKUs in long continuous batches.
1.Output: Stable production at 150,000 capsules/hour.
2.10-Station Rotary Design: One-piece forming frame with no splicing gaps for superior sealing.
3.Indexing: 100DS cam indexing box
4.Powder handling: Vibration-assisted butterfly valve hopper — force-feeds sticky herbal powders that jam a screw feeder
Is the NJP-2500C the right filler for you?
✓ This is a fit if…
- You need around 15,000 capsules an hour as a sustained rate
- You're running product development, stability batches or small commercial runs
- You're filling powder, granule or pellets
- You run 00# to 5# capsules
- Your room holds 21 °C ± 3 °C and 40–60% humidity
✕ Look elsewhere if…
- You need more than 150,000 an hour → the NJP-3800C runs 228,000 for a modest step up
- This is your only machine and you plan to scale within a year → buying the 3800C now costs less than buying the 2500C twice
- You're doing bench-scale R&D only → a semi-automatic filler costs a fraction of this
- Your powder is very fine and highly potent → an enclosed rotary machine with dust extraction is not the same as a contained or isolator system. Tell us your OEB band first
- You need under 72,000 an hour → the NJP-1200D costs less and adds the dry vacuum pump
- You need more than 150,000 → the NJP-3800C runs 228,000
- You change SKU frequently → at eighteen bores, a full tooling change is a bigger job than on the smaller models. Ask us for the changeover time on your actual size range before you commit
- Precision Dosing: Vibration-assisted butterfly valve for ±3% accuracy, even with sticky TCM.
- Heavy-Duty Drive: Reinforced 100DS indexing box ensures vibration-free stability.
Model | NJP-2500C |
Max Output | 150,000 capsules/hour (2,500 pcs/min) |
Capsule Sizes | #000, #00, #0, #1, #2, #3, #4, #5 |
Number of Dosing Bores | 18 bores |
Filling Accuracy | ±3% (pharmaceutical powder) / ±4% (herbal powder) |
Suitable Materials | Powder, Granule, Pellet |
Power Supply | 220V / 380V, 50/60Hz, 3.0 kW |
Vacuum Requirement | 40 m³/h, −0.04 to −0.08 MPa |
Dust Extraction | 210 m³/h, 24.5 kPa |
Compressed Air | 5 m³/h, 5–7 bar |
Noise Level | < 75 dB(A) |
Overall Dimensions | 1100×1200×2000mm |
Net Weight | 1,500kg |
Vacuum pump type | Water Ring Vacuum Pump |
Lubrication | Enclosed Oil Bath Lubrication |
Facility requirement | 21 °C ± 3 °C, RH 40–60% |
Model comparison
Model | Output pcs/h | Type | Best for… |
|
NJP-200C | 12,000 | C | Small batches and product development | View → |
NJP-400C | 24,000 | C | Growing production | View → |
NJP-800C | 48,000 | C | Standard commercial output | View → |
NJP-1200D | 72,000 | D | Sticky and herbal powders at scale — dry vacuum pump, auto lubrication | View → |
NJP-2500C | 150,000 | C | High-volume continuous production | You are here |
NJP-3800C | 228,000 | C | Large-scale manufacturing | View → |
NJP-5500C | 330,000 | C | Very high volume | View → |
NJP-7500C | 450,000 | C | Highest output in the range | View → |
The D suffix is a configuration, not just a speed step. C-type machines use a water-ring vacuum pump and external-groove cam lubrication. The D adds a dry vacuum pump — no water to refill, no scale build-up — plus enclosed internal-groove cams with automatic timed oiling, and a nano anti-corrosion coating over the same pharmaceutical-grade stainless steel. If your formulation is corrosive or your maintenance team is thin, that’s what you’re paying for.
Patented butterfly valve hopper
Utilizes a vibration-assisted butterfly valve feeding system to ensure smooth flow for powders with poor liquidity, such as Chinese herbal medicine.
100DS indexing box
Features an enlarged input (30 mm) and output (40 mm) shaft diameter, providing the stability needed for continuous high-speed runs without mechanical failure.
Guideway-driven capsule seeder
Adopts a new guideway transmission mechanism with an enclosed design to prevent dust and capsule fragments from interfering with orientation.
Negative-pressure powder recovery
Automatically inhales powder from unseparated capsules directly into the collector, maintaining material yield and a clean platform.
One-piece enclosed turntable
The enclosed turntable runs three years without internal maintenance or manual oiling.
Automatic timed lubrication
Integrated automatic timed lubrication system timing system provides fixed-point, quantitative oil supply to maximize the service life of all moving parts.
How Much API Are You Losing per Batch?
A sophisticated negative-pressure system recycles stray powder, delivering cost savings for high-volume runs.
Keeping Powder Out of the Drive System
The enclosed turntable runs three years without internal maintenance or manual oiling with a dual-lip skeleton dust ring to prevent powder ingress.
Running at 150,000/h Without Losing Fill Accuracy
Unlike smaller models, the NJP-2500C utilizes a 10-station workflow to ensure more precise capsule separation and locking at higher speeds.
Industrial Applications
Changeover: what you change and how long it takes
What you changed | What gets adjusted | Roughly how long |
Same capsule, different fill weight | Tamping pin depth on the dosing station | 15-30mins |
Fill weight beyond the adjustment range | Swap the dosing disc for a different thickness | 15-30mins |
Different capsule size | Full tooling set: upper and lower modules, tamping pins, capsule tubes, alignment combs, feeding combs, dosing disc, alignment bars | 15-30mins |
Dosing disc thickness is the second lever. When tamping depth reaches its mechanical limit and you still can’t hit your target fill weight, you change the disc rather than fighting the machine. It’s a physical volume change, not a calibration.
The gaps matter more than they sound. Dosing disc to copper ring: 0.08–0.12 mm. Isolation block to disc: 0.05–0.1 mm. Every disc change means resetting the second one. Too tight and the disc binds; too loose and powder leaks and your fill weight scatters.
Cleaning is the long part. Between products, the powder hopper, dosing ring, upper and lower modules, tamping pins and dosing disc all come out. Parts above the machine table are cleaned with alcohol on lint-free cloth — never gasoline, kerosene, hydrogen peroxide or acetone.
What to check before you order — from any supplier
Ask to see the machine running your powder, not a demo powder
Lactose and starch run beautifully on everything. Ask for a video of your own material, or send a 2 kg sample for a trial run. Any factory that won't do this is telling you something.
Ask what the sustained rate is, not the maximum rate
Catalogue output figures are peak numbers. Ask what the machine holds over an eight-hour shift with your fill weight and your capsule size, and what the reject rate looks like at that speed.
Ask for the operating manual before you pay
If the adjustment procedures aren't in it — tamping pin height, dosing disc clearances, vacuum settings — your operators will be calling the factory every time something drifts.
Ask which parts are wear parts and what they cost
On a capsule filler that means seals, tamping pins and the dosing disc. Get the list and the prices in writing with the quotation.
Ask what the electrical supply actually is
Most machines from Asia ship at 380V / 50Hz as standard. Confirm in writing that yours will arrive configured for your plant, and whether the output figure still holds after the change.
Ask who installs it and who trains your operators
"We provide installation support" can mean an engineer on your floor or a PDF. Ask which, ask for how many days, and ask what happens if commissioning takes longer.
Why Choose AIPAK
Why buy this machine from us
Accuracy you can check Fill weight accuracy is ±3% on pharmaceutical powder, ±4% on herbal powder. We run your material at factory acceptance testing and give you the actual figures for your formulation — not a number off a brochure.
The manual your operator can actually use An English operating and maintenance manual with the adjustment procedures in it — tamping pin height, dosing disc gaps, vacuum pressure. Ask to see it before you order.
Installation and training on site Our engineers install it, dial it in on your powder, and train your operators before they leave.
Factory-direct engineering You buy from the plant that builds the machine. Custom tooling, feeder configurations and change parts are a conversation with our engineers, not a request passed down a chain.
NJP-2500C Flagship Performance FAQ
Most high-speed machines suffer from vibration and shaft breakage. We are the first to implement the 100DS high-precision cam dividing box. With an output shaft diameter of 30mm and increased torque, this system handles the massive mechanical load of 2,500 capsules per minute with zero risk of transmission failure.
Not at all. We utilize a guideway transmission seeder rack that ensures precise capsule orientation even at maximum velocity. This enclosed design combined with an imported oil-free vacuum pump maintains a success rate of 99.9% for empty capsule feeding rate.
Traditional machines use screw feeding, which often clogs when dealing with powders of poor liquidity. Our Butterfly valve hopper with forced vibration system features an integrated vibration unit. This forces the powder down consistently, solving the chronic “bridging” problem and ensuring precise dosage for sticky or hygroscopic herbal extracts.
We use a reinforcement internal drive and a Liang Smeng automatic oil supply system. By delivering quantitative lubrication at fixed points and times, we keep friction-generated heat at a minimum. Additionally, our dry vacuum pump generates significantly less heat than traditional water-sealed pumps, maintaining stable conditions for heat-sensitive drugs.
In a 150k caps/h line, even minor spills lead to massive waste. Our patented recovery device at the filling station instantly inhales powder from any unseparated capsules. This prevents powder from contaminating the platform and allows for material recovery, which can save API costs.
The NJP-2500C turntable is made from one-piece processing with no splicing gaps. Equipped with dustproof lip skeleton seals. The enclosed turntable runs three years without internal maintenance or manual oiling. You will not need to refuel or clean internal drive parts for up to three years, drastically reducing your OPEX.
Yes. 21 CFR Part 11 compliance is achieved by the user’s quality system, not by equipment alone. What we provide is the technical foundation: the Siemens PLC and HMI can be configured with user-level access control, electronic signature prompts, and a tamper-evident audit trail that records every parameter change with user ID and timestamp. Records can be exported for review. We supply the configuration documentation your validation team needs to complete Part 11 assessment.
Every part in contact with the product is made of 316L stainless steel. We provide full 3.1 material certificates supplied with EN 10204 3.1 mill certificates for your material traceability records.
For standard NJP-2500C models, our lead time is 4-6 weeks. Shipping to major U.S. ports (e.g., LA or New York) typically takes an additional 3-4 weeks.
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