NMX‑SFM‑30 / Rev 00 / shell filling plant / meter · lay · weigh 2026 · Product Page

NMX-SFM-30 · ENGINEERED TO ORDER — SCREW FILLING MACHINE

Metered by the turn. Proven by the scale.

Name: Screw Filling Machine
Brand: Neometrix

An auger turning in a barrel displaces a known volume per revolution — so the fill is commanded in rotation, not time, on a servo drive resolved far finer than the tolerance it has to hold. But rotation is only the command. A load cell under the shell takes tare and gross for every single shell, and the machine accepts or diverts on measured weight, never on assumption. Delivery matters as much as quantity: the nozzle enters and withdraws as the level rises, laying a dense, uniform column from the base up instead of dropping it in. Conversion kits take one machine between shell natures, with changeover ending in a verification fill and weight check before the first accepted shell. And all of it runs from behind a barrier — nobody in the bay, including when it goes wrong. Engineered to order, grounded in a delivered filling-and-assembling machine — no delivered screw filling machine is claimed.

Enquire — screw filling machine Capability sheet (PDF)

Illustrative image, not a delivered system — a screw filling machine standing alone in a clean process bay: a tall grey and stainless steel frame with a conical hopper feeding a vertical barrel, a servo drive and gearbox at the top, and beneath the nozzle a plain machined steel cylindrical workpiece with a tapered nose upright in a locating fixture on a stainless weighing platform, pale epoxy-coated walls and floor, everything clean, empty and unattended, no people and no text

Fig · 01 The machine — hopper, screw, barrel and nozzle above a located shell on a weighing platform — illustrative, not a delivered system

Meters

by rotationservo · position feedback

Proves

every shelltare · gross · auto-divert

Delivery

laid, base updense · void-free

Converts

nature to naturescrews · nozzles · fixtures

Operated

remotelynobody in the bay

ISO 9001 / 14001 Engineered to order Delivered filling-machine franchise Remote-operated bays Noida · India

Overview

The screw commands. The scale decides.

A filling machine is asked for two things that pull against each other: put the same quantity into every shell, and put it in well — densely, uniformly, without cavities. A screw answers both, because an auger is simultaneously a metering element and a delivery element. Turning it a counted number of revolutions decides how much; the way it delivers — continuously, under controlled pressure, through a nozzle that withdraws as the column rises — decides how well. Everything else on this page exists to prove that both happened.

Illustrative image, not a delivered system — a long polished stainless steel auger screw stripped out for cleaning and lying on a clean stainless workbench with a continuous helical flight and bright machined finish, laid beside its opened cylindrical barrel section and a separate tapered nozzle, with clean hand tools and a folded cloth arranged alongside, everything spotless and empty, no people and no text

Fig · 02 The auger, stripped — a machine that cannot be cleaned properly is a machine that will not be — illustrative, not a delivered system

Rotation is the command; weight is the proof. Because a screw displaces a known volume per revolution, the natural way to command a fill is in turns — a servo drive with position feedback, resolved so that the smallest commanded increment sits far below the tolerance the fill must hold. That is a good command signal and a poor measurement: delivered mass per revolution shifts with the condition of the material in the hopper, and a machine that trusts its own metering will drift confidently. So every shell is weighed — tare before, gross after, on a calibrated chain — and the result, not the command, decides. Shells outside the band are diverted by the machine, automatically, because an accept/reject decision left to a person under production pressure is a decision that erodes.

Laid, not dropped. The nozzle enters the shell and retracts as the level comes up, so material is placed against what is already there under controlled delivery pressure rather than falling through air. The result is a dense, uniform column without the cavities and pipes that discontinuous methods invite — and a void is a defect: the radiographic inspection bay downstream exists precisely to find what good filling prevents. The withdrawal profile, the delivery rate and the nozzle geometry are the machine’s real engineering content.

One machine, several natures. Requirements are rarely for a single shell size, so the machine is built around a conversion kit: changeable screws, barrels, nozzles and locating fixtures, with stored recipes and a documented changeover. The discipline that matters is the end of that procedure — a verification fill and weight check before the first accepted shell of the new nature. A conversion kit specified as a parts list is half a specification; specified as a timed procedure with a proof, it is the difference between a plant that changes over in a shift and one that does not.

This page describes the machine, not the material. Fill materials, their handling and their licensing are the customer’s and the licensing authority’s to specify — and process parameters belong in a tender response, not on a public page.

Measured

Every shell on the scale

Tare and gross on a calibrated weighing chain, accept or divert decided automatically — metering drifts, weighing does not.

Dense

A column, not a pour

The nozzle withdraws as the level rises, laying material against material — because a void is a defect, not a cosmetic matter.

Empty

Nobody in the bay

Loading, filling, weighing and release run from behind the barrier — and the jam, the stall and the part-filled shell are recovered from outside.

Architecture

Locate, command, lay, weigh.

The schematic follows one shell — located and tared, the screw commanded in turns, the column laid from the base up as the nozzle withdraws, the gross weight taken and the shell accepted or diverted — and shows the machine behind it: hopper and screw, nozzle and withdrawal, weighing and divert, and the conversion kit and record.

FIG · 03SFM ARCHITECTURE · HOPPER + SCREW / NOZZLE + WITHDRAWAL / WEIGH + DIVERT · CONVERSION & RECORD

Fig · 03 Commanded in turns, decided on the scale — and every step of it run from outside the bay

Arc · 01

Hopper, Screw & Barrel

Servo drive with position feedback, wetted parts in specified materials, and a screw and barrel that strip down with proper tooling — no hot work, no improvised force.

Arc · 02

Nozzle & Withdrawal

Entry, controlled delivery and the withdrawal profile that lays the column from the base upward — the machine’s real quality content.

Arc · 03

Weighing & Divert

Tare and gross per shell on a calibrated chain; accept, reject and divert decided by the machine, never by judgement under pressure.

Arc · 04

Conversion & Record

Kits per nature with stored recipes, a timed changeover ending in a verification fill — and every fill written against shell identity and batch.

Have a screw filling machine or shell filling-line requirement? Send the natures, the fill tolerance and the bay — a clause-by-clause compliance matrix within two working days · [email protected]

Send tender spec

Specifications

Reference machine, built to the natures.

The parameters below describe a reference machine. The screw and barrel sizing, the nozzle set, the weighing range, the conversion kit and the bay integration all follow from three givens: the shell natures to be filled, the fill tolerance the specification demands, and the bay and licensing regime the machine must live inside.

Illustrative image, not a delivered system — a filling bay seen from the control side: a grey steel control desk with two large blank dark screens and plain unmarked controls in the foreground, behind it a heavy pale reinforced concrete wall with a thick laminated viewing window through which the grey and stainless filling machine stands alone in the brightly lit clean bay beyond, a heavy interlocked door beside the window, pale epoxy floor, unattended, no people and no text

Fig · 04 The control side — the machine is run from here, and the bay stays empty while it runs — illustrative, not a delivered system

Where screw filling machines go wrong

In the assumptions, not the mechanism. A machine that trusts metering without weighing drifts as material condition changes and produces a shift nobody sees until a batch is rejected. A changeover with no verification step puts the first shells of a new nature into production on faith. A screw and barrel that cannot be cleaned without improvised tooling or force will be cleaned badly, which is the least acceptable outcome in this building. Fill records that stay inside the machine break traceability at the step that most needs it. And the deepest error: designing remote operation for normal running only — because the jam, the stall and the part-filled shell are exactly the conditions under which someone decides to walk into the bay, which is the one thing the whole architecture exists to prevent.

So the discipline runs the other way. Rotation commands, weight decides, on a calibrated chain, with automatic divert. Changeover is a timed, tool-controlled procedure ending in a verification fill. Wetted parts strip out with proper tooling and go back with a documented check. The fill record is written against shell identity and batch and leaves with the shell. And the abnormal cases are designed first — jam detection, controlled stall recovery, part-filled shell handling and purge, all actioned from outside — because a bay is only as empty as its worst day allows.

Full specification — expand

Machine	Screw filling machine for large-calibre shell filling — metering, delivery, weighing, conversion, handling & bay integration; engineered, built, installed, commissioned & supported
Function	A measured, laid, weighed and recorded fill, one shell at a time, under remote operation — the metering and delivery machine at the centre of a filling line
Metering	Auger in a barrel, known volume per revolution; fill commanded in rotation, not time; servo drive with position feedback resolved far below the fill tolerance
Verification	Load cell under the shell — tare & gross for every shell on a calibrated chain; accept, reject & divert automatic, never by operator judgement
Delivery	Nozzle enters & withdraws as the level rises — the column laid from the base upward under controlled delivery pressure; dense, uniform, void-free
Conversion Kit	Changeable screws, barrels, nozzles & locating fixtures with stored recipes — one machine across shell natures; changeover timed & tool-controlled
Changeover Proof	Every conversion ends in a verification fill & weight check before the first accepted shell — a procedure with a proof, not a parts list
Remote Operation	Load, locate, clamp, fill, weigh, index & release from behind a barrier; interlocked access; jam, stall & part-filled shell recovered without entry
Bay Integration	Separation & blast relief, non-sparking wetted & contact materials, earthing & static control, temperature-controlled process area, suppression readiness
Handling	Shells in & out on conveyors or filling trolleys, located & clamped mechanically — a filled shell is never carried
Cleaning & Maintenance	Screw, barrel & nozzle strip with proper tooling — no hot work, no improvised force; wetted parts in specified materials; access designed so cleaning is done properly
Records	Fill weight per shell against identity & batch, changeover & verification records, weighing-chain calibration — the record follows the shell to inspection & packing
Scope Boundary	The machine, not the material — fill materials, their handling & their licensing are the customer's & the licensing authority's to specify; process parameters belong in the tender response
Sourcing	Servo drives, load cells, controls & instrumentation are bought-in certified items; Neometrix engineers the machine, handling, weighing, records, conversion kits & bay integration
Status	Engineered to order · quoted across screw filling machine & large-calibre shell filling-line requirements · grounded in a delivered filling-and-assembling machine · no delivered screw filling machine is claimed on this page

PDF · 1 page

Screw Filling Machine — Capability Sheet

Tender Response

Send natures, tolerance & bay — compliance matrix in two working days

Variants

One principle, four scopes.

Requirements arrive as a screw filling machine, a filling line, a conversion kit, or a bay to be integrated and handled. The principle — commanded in turns, proven on the scale, laid from the base up — is common; the scope follows the plant.

Var · 01

Screw Filling Machines

The single machine — hopper, screw, barrel, nozzle, weighing platform, controls and records, sized to the natures and the fill tolerance.

Var · 02

Large-Calibre Filling Lines

The machine in its line — infeed and outfeed handling, location and clamping, weighing, divert, and integration with inspection downstream.

Var · 03

Conversion Kits & Changeover

Screws, barrels, nozzles, fixtures and recipes for additional natures — supplied with the timed procedure and the verification step that proves it.

Var · 04

Bay Integration, Handling & AMC

Interlocks, remote operation, trolleys and conveyors, static control and suppression readiness — with spares, calibration and AMC through life.

Applications

Where the fill is made and proven.

Licensed filling plants and the projects that modernise them.

A · 01Ammunition factories’ filling sections

A · 02State ammunition manufacturers

A · 03Defence-production & ordnance units

A · 04Less-lethal store manufacture

A · 05Plant capacity augmentation & modernisation

A · 06Quality directorates & inspectorates

FAQ

Common questions.

Plain-language answers from the engineering team.

Q · 01 What is a screw filling machine, and why a screw rather than something simpler?

It is the machine that puts a measured quantity of fill material into a shell body, and the screw is chosen because it does two jobs at once that would otherwise fight each other. As a metering element, an auger turning inside a close-fitting barrel displaces a known volume per revolution — so quantity can be commanded geometrically, by counting turns, rather than by running a valve for a length of time and hoping the rate held. As a delivery element, it moves material continuously and under controlled pressure, so it can be placed rather than dropped: the nozzle sits down inside the shell and withdraws as the level rises, laying material against material from the base upward. That second property is why simpler approaches fall short. Anything that delivers discontinuously, or from a height, or into an open cavity invites entrapped air, cavities and pipes down the centre — and in a filled shell those are defects that affect both mass distribution and the item’s behaviour, which is exactly what the radiographic inspection bay downstream is looking for. A screw filling machine is therefore not just a dispenser with a motor; it is a metering-and-consolidation machine whose quality output is a dense, uniform column of the right mass, produced identically several hundred times a shift.

Q · 02 How is fill quantity actually controlled — and how do you know it was right?

Those are deliberately two different systems, and keeping them separate is the core of the design. Control is by rotation: the recipe for a nature specifies a number of revolutions, the servo drive turns the screw through them with position feedback, and the drive resolution is chosen so the smallest increment it can command is far smaller than the tolerance the fill must hold. That gives a repeatable, adjustable, geometric command. Verification is by weight, and it is independent: the shell sits on a load-cell platform, is weighed empty for its tare, and weighed again after filling for its gross, so the delivered mass is measured directly on a calibrated chain rather than inferred. This matters because delivered mass per revolution is not perfectly constant — it moves with the condition of the material in the hopper, with head height, with temperature in the bay. A machine that trusts its own metering will therefore drift, and drift confidently, which is worse than failing loudly. So the machine closes the loop: weight decides acceptance against the band, out-of-tolerance shells are diverted automatically by the machine rather than judged by an operator under production pressure, and persistent drift trends are visible in the record so the cause gets fixed instead of absorbed. Rotation commands; the scale decides.

Q · 03 What does a conversion kit do — can one machine really serve several shell natures?

Yes, and it is usually the deciding requirement, because a plant filling one nature only is rare. The parts of the machine that are specific to a nature are the ones that touch the shell or size the delivery: the screw and barrel for the delivery rate and volume per turn, the nozzle for the shell’s internal geometry and the withdrawal profile, and the locating fixture that holds that shell body square and repeatably on the weighing platform. A conversion kit is that set, plus the stored recipe — revolutions, rates, withdrawal profile, tolerance band and weighing configuration — recalled rather than re-entered, because re-entering numbers by hand at changeover is how the wrong ones get used. What separates a good conversion from a bad one is not the parts but the procedure: changeover is specified as a sequence with defined tooling, a stopwatch against it, and a mandatory ending — a verification fill and weight check that must pass before the first accepted shell of the new nature. Without that step, a plant is putting the first items of a run into production on the assumption that everything went back together correctly. With it, changeover becomes an operation a shift can perform confidently and repeatedly, which is what actually makes one machine serve several natures in practice rather than only on paper.

Q · 04 How is the machine operated safely — who is in the bay while it runs?

Nobody, and the entire architecture is built backwards from that sentence. The machine loads, locates, clamps, fills, weighs, indexes and releases without a person at it; shells arrive and leave on conveyors or filling trolleys; the operator works from a console behind a barrier, with the bay visible through a window or on camera, and access is interlocked so the bay cannot be entered while the machine is live. Around that sit the plant measures a licensed filling building requires in any case: separation and blast relief so that an event stays local and vents where it is designed to, non-sparking wetted and contact materials, earthing and static control throughout, a temperature-controlled process area, and suppression provision. But the part that separates a well-engineered machine from a compliant one is the abnormal case. Normal running is easy to automate; it is the jam, the stall, the part-filled shell and the aborted cycle that tempt someone to open the door, and if the machine has no answer for those, the answer becomes a person walking in. So they are designed first: jam and stall detection, a controlled recovery sequence, purge and clearing routines, and handling for the part-filled shell — all commanded from outside. A bay is only as empty as its worst day permits.

Q · 05 How is it cleaned and maintained, and what gets recorded?

Cleaning is a design requirement, not a housekeeping instruction. The screw, barrel and nozzle are the wetted parts, and they are designed to come out and go back with proper tooling, no hot work and no improvised force — captive fasteners rather than seized ones, lifting provision for parts too heavy to handle safely, surfaces and radii that do not trap, and materials specified for the duty. The reason is simple: a machine that is awkward to strip is a machine that gets cleaned in a hurry or partially, and in this building that is the least acceptable outcome there is. Access, weight and tooling therefore get engineered with the same seriousness as the metering. Records run in parallel. Every shell’s tare and gross weight is written against its identity and its batch, so the fill is traceable long after the shift; changeovers are recorded with their verification-fill result; the weighing chain carries calibration against reference masses on a schedule; and maintenance, strip-downs and parts changes are logged against the machine. The record leaves with the shell — forward to the inspection bay and then to packing — so the batch file at the end of the line can account for every item without anyone reconstructing it from memory.

Q · 06 What do you build, what is bought-in — and what do you deliberately not specify?

What Neometrix does: the machine — frame, hopper, screw and barrel, nozzle and withdrawal mechanism, drive train, weighing platform and guarding; the handling — infeed and outfeed conveyors or filling trolleys, location and clamping fixtures, divert; the controls, weighing and records — recipes, sequence, interlock logic, accept/reject and the batch record; the conversion kits and their changeover procedures; the bay integration — remote operation, interlocked access, static control provision, and the interfaces to the building’s own systems; and installation, commissioning, verification, spares, calibration and AMC through life. What is bought-in certified: servo drives and gearboxes, load cells and weighing instrumentation, controls and safety-rated components, each with its certificates. What we deliberately do not specify is the fill material — its identity, its handling and its licensing are the customer’s and the licensing authority’s, and the machine is engineered to the duty they define; process parameters live in the tender response, under the customer’s own confidentiality, and not on a public page. This work is grounded in a delivered filling-and-assembling machine supplied against a won order for a central armed police force’s stores, alongside the shell-forming press franchise upstream and the inspection and packing franchises downstream. Engineered to order; quoted across screw filling machine and large-calibre shell filling-line requirements; no delivered screw filling machine is claimed on this page.

↗

The factory chain from Neometrix.

The presses that form the shell before this machine, and the inspection and packing that follow it — engineered at our Noida facility.

↗ Shell Forming

Vertical Nosing Press

Upstream — the press franchise that forms the shell body this machine fills.

↗ Inspection

Non-Destructive Testing & Inspection System

Downstream — the bay that looks for exactly what good filling prevents.

↗ Packing

Ammunition Packing & Container Line

The last bay — where the batch record this machine started finally closes.

Browse all Neometrix product lines.

Get a quotation

Send the natures
and the tolerance.

The defence programmes desk replies within two working days with a clause-by-clause compliance matrix and a budgetary quotation. Write to [email protected] or use the form.

Enquire — screw filling machine Capability sheet (PDF) +91 7777 876 876

ISO 9001 / 14001 ENGINEERED TO ORDER — SCREW FILLING MACHINE METERED BY ROTATION · PROVEN BY WEIGHT · CONVERSION KITS · REMOTE-OPERATED BAYS ENGINEERED IN NOIDA · INDIA

Metered by the turn. Proven by the scale.

The screw commands. The scale decides.

Every shell on the scale

A column, not a pour

Nobody in the bay

Locate, command, lay, weigh.

Hopper, Screw & Barrel

Nozzle & Withdrawal

Weighing & Divert

Conversion & Record

Reference machine, built to the natures.

Where screw filling machines go wrong

One principle, four scopes.

Screw Filling Machines

Large-Calibre Filling Lines

Conversion Kits & Changeover

Bay Integration, Handling & AMC

Where the fill is made and proven.

Common questions.

The factory chain from Neometrix.

Vertical Nosing Press

Non-Destructive Testing & Inspection System

Ammunition Packing & Container Line

Send the natures
and the tolerance.

Similar Products

Share This Page

Metered by the turn. Proven by the scale.

The screw commands. The scale decides.

Every shell on the scale

A column, not a pour

Nobody in the bay

Locate, command, lay, weigh.

Hopper, Screw & Barrel

Nozzle & Withdrawal

Weighing & Divert

Conversion & Record

Reference machine, built to the natures.

Where screw filling machines go wrong

One principle, four scopes.

Screw Filling Machines

Large-Calibre Filling Lines

Conversion Kits & Changeover

Bay Integration, Handling & AMC

Where the fill is made and proven.

Common questions.

The factory chain from Neometrix.

Vertical Nosing Press

Non-Destructive Testing & Inspection System

Ammunition Packing & Container Line

Send the naturesand the tolerance.

Similar Products

Share This Page

Send the natures
and the tolerance.