Pharmaceutical production of tablets and capsules requires precise control over powders, granules, and components to ensure uniformity, potency, and sterility throughout processing. Spiral Elevator Limited manufactures vibratory handling systems that elevate materials vertically while integrating screening to remove fines and cooling to stabilize temperatures. These solutions reduce equipment interfaces, minimize cleanroom footprints, and comply fully with cGMP and FDA standards for pharmaceutical operations.
Challenges We Solve for Pharmaceutical Manufacturers
Powder screening and de-dusting
Powders contain fines and agglomerates from milling that disrupt blend uniformity and tablet weights. Our screening spiral elevators integrate mesh flights directly into the vertical path. This removes contaminants during elevation, delivering consistent material to granulators without separate sieving stations.
Granule cooling post-drying
Granules from fluidized beds exit at 50-70°C, causing sticking in mills and presses. Our cooling spiral elevators channel airflow along helical flights. This rapidly reduces temperatures by 40-60°C during transfer, stabilizing flow properties for downstream compression.
Gentle handling of friable APIs
Excipients and actives degrade in impact elevators, altering particle size distributions critical for dissolution. Our vibratory spirals create low-amplitude fluidization. This minimizes shear while achieving elevation gains up to 15m, preserving integrity across 1-20 t/h.
Sterile cleanability for cGMP
Residues in crevices fail validation and risk contamination. Our equipment features electropolished 316L steel with Ra < 0.8 μm finishes. Open helix designs and removable trays enable full CIP access and 100% visual inspection.
Precise dosing of low-dose APIs
Variable flow causes content uniformity failures in blends. Our magnetic dosing feeders deliver ±0.5% accuracy. Real-time PLC control synchronizes with scales for continuous manufacturing lines.
Containment of high-potency compounds
Dust escape during transfer exceeds OEB limits for operators. Our vibrating tube feeders provide sealed stainless paths. Vibration transmits through walls without compromising isolator interfaces.
Cleanroom space optimization
Inclined conveyors consume valuable floor area. Our compact spirals rise 12m in 1.8m² footprints. This frees space for RABS, fillers, and HVAC zoning in multi-level facilities.
Hopper discharge without segregation
Cohesive excipients bridge in silos, separating blends. Our vibratory hopper dischargers apply uniform radial energy. This ensures first-in-first-out flow for lactose, cellulose, and lubricants.
How We Integrate Into Your Process
Granulation to Drying
Screening spiral elevators process wet mass from mixers en route to fluid beds, eliminating standalone sieves and two transfers.
Post-Drying Preparation
Cooling spirals condition granules from 65°C to 25°C before mills, leveraging 15-20m path length for uniformity.
Blending and Dosing
Feeders layer APIs into blenders with density-matched vibration. NIR feedback enables dynamic adjustment.
Pre-Compression Classification
Screens protect rotary press tooling by removing >500μm agglomerates.
High-Containment Transfer
Tube feeders lift oncology APIs from gloveboxes to granulators under OEB5.
Packaging Interface
Decline spirals buffer 25,000 units/hour between floors.
Excipient Supply
Hopper dischargers feed lubricants directly to spheronizers.
Multi-function units combine lift/cool/screen operations, reducing cleanroom interfaces by 50%.
Our Equipment Range
Key Pharmaceutical-Grade Products
Air Cooling Spiral Elevator:
After granulation or extrusion, your product needs to cool down fast — without sitting on a floor-level conveyor taking up half your line. This unit handles vertical transfer and cooling in one pass, using controlled airflow to bring temperatures down during elevation.
Screening Spiral Elevator:
Instead of elevating your product and then sending it to a separate sieve, this does both in one enclosed step. Fines and oversized particles are captured and discharged cleanly mid-elevation, so only in-specification product reaches your tablet press or filler.
Cooling or Dry Spiral Elevator:
When your product comes out of a wet granulation or wash process, surface moisture is a problem. This unit gives it the dwell time and airflow it needs to arrive at the next stage dry, stable, and ready for blending or compression.
Recirculation Spiral Elevator:
If the product doesn't pass a quality check mid-line, this brings it back upstream for rework without stopping the line. Continuous flow is maintained while out-of-specification batches are handled separately.
Decline Spiral Elevator:
Moving product down from a processing height to a tablet press or filling station without damaging it is harder than it sounds. This unit gives you a controlled, gentle descent — with the option to add cooling or accumulation along the way.
Vibrating Tube Feeders:
For potent compounds and fine powders, open transfer simply isn't an option. These fully enclosed feeders move material without releasing dust into the environment, and they're built to interface with isolators and LEV systems where required.
Vibrating Screens & Sieves:
Whether you're classifying raw materials, checking blend uniformity, or removing agglomerates before compression, these give you a reliable, repeatable separation at whatever point in your process you need it.
Magnetic Dosing Feeders:
When your formulation demands precise excipient or API additions, these feeders give you the consistency your batch records require. No pulsation, no drift, no variance between runs — just accurate, loggable feed rates every time.
Vibratory Hopper Dischargers:
Cohesive powders like lactose, MCC, and spray-dried blends love to bridge and block. These dischargers keep material moving from your IBC or hopper outlet without any manual intervention disrupting your line.
Vibrating Compaction Tables:
Filling containers and drums with powders often leaves air pockets and uneven density. These tables settle the product during filling, giving you consistent fill weights and cleaner, more uniform packaging.
Why Pharmaceutical Manufacturers Choose Spiral Elevator Limited?
Built around your process
There's no standard pharmaceutical line, and there's no standard Spiral Elevators machine. Every system we manufacture is designed around your specific product, your containment requirements, and your compliance framework. If it doesn't fit your process exactly, we haven't done our job.
GMP-grade construction as standard
Stainless steel, crevice-free surfaces, open profiles, IP65+ enclosures. These aren't upgrades you request — they're built into every machine we make. Your cleaning validation team will have full access to every product-contact surface, and we'll supply the documentation to back it up.
Fewer machines, less complexity
Qualifying equipment takes time. Running CIP cycles on four separate machines takes longer. Our multi-function spirals combine elevation, cooling, and screening in a single validated unit—so your IQ/OQ/PQ scope shrinks, your harbour points reduce, and your floor space opens up.
Product integrity, protected
Coating damage, fines generation, and blend segregation are conveying problems as much as formulation ones. Our vibratory systems move product gently, without the drops, scraping, and nip points that conventional belts introduce. What goes in comes out intact—which matters when your dissolution data depends on it.
UK-built, locally supported
Every system is engineered and built in the UK, with lead times of 6–12 weeks from design sign-off. When you need a site visit, commissioning support, or a technical answer, you're talking to the people who built it — not a distributor in a different time zone.
A decade of experience in demanding environments
Pharmaceutical lines, hygienic environments, fragile products, potent compounds—this is the work we've built our reputation on. Every machine carries that experience with it.