Beskrivning
Product Overview
The Electric Piston Filling Machine YZG from Ever Power Meat Processing Equipment Co, Ltd is a purpose-built servo-driven piston filler designed specifically for large-diameter sausage products — typically casings ranging from 30 mm to 50 mm in diameter. Unlike rotary vane fillers that excel at fine emulsions and thin sausages, the piston mechanism applies gentle, controlled pressure that preserves the integrity of coarser raw materials: whole muscle chunks, egg sausage (蛋清肠), large-calibre ham paste, and mixed meat products where texture retention is a production priority.
At the heart of the YZG is a precision servo motor drive system paired with a ball-screw linear actuator. This combination delivers a filling speed of up to 70 strokes per minute while maintaining fill-weight accuracy within ±1% — a standard that satisfies automated portioning and downstream packaging on high-speed lines. The 5.5 kW motor provides ample torque for dense, high-viscosity products without generating the heat or mechanical shear that can degrade fat emulsification. All product-contact surfaces are manufactured in food-grade SUS304 stainless steel, meeting both CE food-safety standards and GB/T 5226.1 electrical safety requirements.
Operation is managed through an intuitive full-colour touchscreen HMI. Operators can program up to 99 product recipes, each storing parameters for fill volume, piston speed profile, and nozzle dwell time. Recipe recall takes under five seconds, making the YZG highly practical on multi-product lines where changeovers happen several times per shift. Noise levels remain below 72 dB(A) during normal operation — well within factory hygiene standards and comfortable for operators working alongside the machine for extended periods.
The YZG was designed to work as a standalone filler or as part of an integrated sausage production line alongside Ever Power’s vane-type vacuum fillers (YZG-6000 series) and automated clipping and kinking machines. Its compact footprint of 1,100 × 1,200 × 1,750 mm fits neatly into most production-floor layouts without requiring structural modifications to the building, and its low centre of gravity contributes to stability when the piston reverses direction at high speed.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | YZG Electric Piston Filling Machine |
| Drive System | Servo motor + ball-screw linear actuator |
| Motor Power | 5.5 kW |
| Max Filling Speed | 70 strokes / minute |
| Fill Weight Accuracy | ±1% (programmable per recipe) |
| Suitable Casing Diameter | 30 – 50 mm (standard); custom nozzles available |
| Product-Contact Material | SUS304 stainless steel |
| Control System | Full-colour touchscreen HMI, up to 99 programmable recipes |
| Machine Dimensions (L × W × H) | 1,100 × 1,200 × 1,750 mm |
| Power Supply | 380 V / 50 Hz / 3-phase (custom voltages on request) |
| Noise Level | < 72 dB(A) |
| Applicable Standards | CE, GB/T 5226.1 electrical safety |
Main Components & Suppliers
| Component | Brand / Supplier | Function |
|---|---|---|
| Servo Motor | Siemens | Drives the piston with precision speed and torque control |
| Servo Drive / Inverter | Siemens SINAMICS | Closed-loop motion control for repeatable stroke positioning |
| Electrical Components | Eaton | Circuit breakers, contactors, overload relays |
| Bearings | Harbin Bearing (HRB) | Linear and rotary bearing sets for ball-screw assembly |
| Piston Cylinder | SUS304 stainless steel | Food-contact product chamber; mirror-polished interior |
| Filling Nozzle Set | SUS304 stainless steel | Interchangeable nozzles for various casing diameters |
| Control Cabinet | IP65-rated stainless steel enclosure | Protects electronics in wet washdown environments |
Key Features
🎯 Precision Servo Drive
A closed-loop Siemens servo system monitors piston position via encoder feedback at every stroke. Fill volume deviation is held within ±1%, eliminating the under/overweight giveaway that inflates raw material costs on high-volume lines producing 500 kg or more per shift.
🥩 Gentle on Coarse Textures
The linear piston action applies force along a single axis, applying no rotary shear to the product. This characteristic makes the YZG the preferred choice for whole-muscle products, egg sausage, and any formulation where the visual cross-section quality matters — visible layers of fat and lean meat remain intact after filling.
📱 99-Recipe Touchscreen HMI
A full-colour touchscreen stores up to 99 named production recipes. Each recipe holds fill volume, piston speed curve, and nozzle engagement timing. Operators select a recipe by name rather than re-entering parameters, reducing setup errors on SKU changeovers and freeing supervisors from having to be present at every product switch.
🧹 Tool-Free Disassembly for Cleaning
The piston cylinder, end caps, and nozzle components all release without tools via quick-release clamps. Full disassembly for CIP-compatible rinsing takes under eight minutes. The absence of threads or blind recesses on product-contact surfaces eliminates the residue buildup points that cause cross-contamination failures during third-party hygiene audits.
🔇 Low Noise Operation
Running at under 72 dB(A), the YZG sits well within the occupational noise exposure limits recommended for prolonged work. The servo motor generates minimal mechanical noise compared to hydraulic or pneumatic alternatives, and vibration-damped mounting feet prevent structure-borne noise from travelling into the production floor slab.
🔗 Line Integration Ready
The YZG offers digital I/O ports for upstream and downstream synchronisation — connecting to casing-feed units, clipper machines, and portion conveyors. An optional foot pedal or hand-trigger port enables semi-automatic operator-paced filling when a fully automatic line is not required. This flexibility makes the machine as practical in a small local processor as in a large-volume industrial facility.
Application Range
The YZG piston filler is specified across a wider variety of large-format meat products than many single-mechanism fillers. The table below provides a practical guide to common applications, noting where the piston mechanism offers a technical advantage over rotary-vane or auger alternatives.
| Product Category | Typical Examples | Why Piston Filling Suits This Category |
|---|---|---|
| Egg Sausage (蛋清肠) | Mixed pork-and-egg emulsion products | Low shear preserves egg-white protein structure; prevents surface cracking after cooking |
| Large-Calibre Ham Sausage | 40–50 mm diameter collagen or fibrous casings | High fill pressure capability without overheating the emulsion during extended production runs |
| Whole-Muscle Chunk Products | Restructured steak, chicken roll, pork loin log | Piston chamber diameter matched to chunk size; no rotary grinding of intact muscle fibres |
| Coarse-Ground Sausage | Polish kielbasa, bratwurst, coarse chorizo | Particle sizes up to 12–15 mm pass without smearing; finished cross-section meets traditional appearance standards |
| Meat Paste & Luncheon Meat | Canned luncheon meat, SPAM-type, mortadella slabs | Consistent fill volume per can or mould form; touchscreen recipe stores exact portion per container size |
| Seafood & Poultry Sausage | Fish cake sausage, chicken cheese roll | Gentle action prevents protein denaturation from mechanical heat in delicate seafood emulsions |
Detailed Performance & Engineering Notes
Servo vs. Hydraulic: Why It Matters in a Food Environment
Older piston fillers relied on hydraulic actuators — effective but carrying the persistent risk of hydraulic oil leaks that could contaminate product. The YZG eliminates oil-based hydraulics entirely. The servo motor transmits force directly through a ball-screw shaft; the only lubricants present are food-safe white mineral grease in the sealed bearing assemblies. This design choice simplifies HACCP compliance documentation by removing a potential chemical hazard from the filling zone, and reduces routine maintenance to periodic bearing inspections rather than oil changes and hose inspections.
Piston Speed Profiling
Unlike simple on/off piston actuators, the Siemens servo drive accepts a programmable velocity curve for each stroke. In practice, this means the piston can accelerate quickly at the start of a fill stroke — when the cylinder is full and product flows freely — then slow down precisely as it approaches the end of the stroke to prevent air inclusion and pressure spikes that can blow natural casings. The nozzle retract timing is also coordinated with the piston’s end position, ensuring that the casing clip-off or twist point coincides with minimal internal product pressure. This level of motion coordination is the practical reason why fill-weight consistency on the YZG matches the specification across all 70 strokes per minute, rather than only at lower operating speeds.
Hopper Geometry and Feed Reliability
The YZG’s hopper uses a contoured base with no sharp internal corners where product can bridge. For high-density or partially frozen paste formulations, the feed channel geometry creates a self-compacting effect that prevents void spaces forming above the piston intake port. This passive de-aeration characteristic reduces, though does not eliminate, the need for a vacuum-assist hopper on dense products. For fine emulsions that entrain significant air, we recommend pairing the YZG with Ever Power’s ZJB Vacuum Mixer, whose post-mixing vacuum hold removes micro-bubbles before product is transferred to the filler’s hopper.
Washdown and IP Rating
The electrical control cabinet carries an IP65 rating, meaning the enclosure is completely dust-tight and withstands water jets from any direction. The servo motor itself is IP54-rated for the standard variant, with IP65 optional for high-humidity smoke-house adjacent installations. The ball-screw assembly is shielded from direct washdown by a stainless steel guard; removal for inspection takes under three minutes. All non-food-contact painted surfaces use a two-part epoxy marine-grade paint formulated to resist alkaline CIP chemicals typically used at concentrations up to 2% NaOH.
Energy Efficiency
Servo drives consume energy only when generating torque. Unlike constant-speed motor systems that draw near-full-load power even during idle strokes, the YZG’s Siemens servo recovers kinetic energy during the return stroke through regenerative braking, feeding it back into the drive bus. In a typical two-shift production day of 16 hours, this regenerative cycle can reduce total electrical consumption by an estimated 15–20% versus a comparable hydraulic piston filler of equivalent output. The 5.5 kW nameplate rating therefore represents peak demand — average demand over a full shift is meaningfully lower.
Choosing Between Piston and Vane-Type Filling: A Practical Guide
Many processors ask whether the YZG piston filler or the YZG-6000 vane-type vacuum filler is the right choice. The answer depends primarily on product characteristics, not on brand preference or price point. The table below is a working reference for plant managers and equipment buyers making that decision.
| Criterion | YZG Electric Piston Filler | YZG-6000 Vane-Type Vacuum Filler |
|---|---|---|
| Best product fit | Coarse, chunky, or large-diameter products | Fine emulsions, frankfurters, liver paste |
| Casing range | 30 – 50 mm (optimum) | 16 – 40 mm (optimum) |
| Shear on product | Very low (linear motion only) | Low but rotary; fine for emulsions |
| Vacuum de-aeration | No (passive hopper geometry) | Yes (built-in vacuum chamber) |
| Throughput | Up to ~800 kg/h (fill volume dependent) | Up to 1,500 kg/h |
| Cleaning complexity | Low — 3-piece piston assembly | Moderate — 12-blade vane disassembly |
| Hydraulic oil risk | None (servo-electric drive) | None (servo-electric drive) |
For processors that manufacture both fine-emulsion sausages and large-calibre products, the most efficient solution is one machine of each type on the same line, with a shared vacuum mixer upstream. Contact us to discuss a line configuration that matches your specific product mix.
Customer Feedback
Reliable weight accuracy on our egg sausage line
Guizhou, China — Running 18 months
We switched from a pneumatic piston filler to this servo model mainly because weight variance on our 38 mm egg sausage was costing us in giveaway. After commissioning the YZG, we measured ±0.8% deviation across a 4-hour run — close to the spec sheet claim. The touchscreen recipe storage has been genuinely useful: we run four SKUs on the same line and changeover takes about 30 seconds once the operator selects the right recipe. One thing to mention — it does need a competent technician for the initial servo parameter setup. The team at Ever Power walked us through it remotely, but it’s not plug-and-play at that level.
Good match for whole-muscle chicken roll production
Ho Chi Minh City, Vietnam — Running 11 months
We needed a filler that could handle 40 mm fibrous casings with diced chicken breast at 12–15 mm particle size without smearing the cuts. The YZG handles this without issue — the cross-section on the sliced product looks clean. Noise level is noticeably lower than the hydraulic machine we used before; the difference was commented on by floor supervisors without prompting. Cleaning is fast once you learn the disassembly order. The machine has had no mechanical failures in 11 months, though we did replace one proximity sensor at month nine — a minor service item.
Does the job well, minor documentation issue at delivery
Johannesburg, South Africa — Running 14 months
The machine itself performs as described — we use it for a 45 mm bratwurst and a coarse lamb merguez, both of which needed a filler that wouldn’t homogenise the fat and lean back into each other. Fill weights are consistent. My only complaint is that the electrical documentation supplied at delivery was in Chinese only; we needed translated schematics for our local electrician during installation, and it took a few days to get English versions. Production has run smoothly since then and the servo components have been trouble-free. Would buy again.
Solid machine for mid-size processor, piston seal worth watching
Istanbul, Turkey — Running 20 months
We’ve been running large-calibre mortadella with this machine since early last year. Overall positive experience — weight accuracy is good and the servo drive hasn’t needed any attention. One maintenance note: the food-grade piston seal shows wear after about 15–16 months of single-shift use. It’s an inexpensive part (we ordered four spares at commissioning on the supplier’s recommendation) and swapping it is a 20-minute job, but worth planning for in your preventive maintenance schedule. Machine is easy to get spare parts for via the local agent, which matters for a processing facility like ours where downtime is costly.
Service & Warranty
| Item | Details |
|---|---|
| Machine Warranty | 12 months from date of acceptance on all mechanical and electrical components (excluding consumable wear parts: piston seals, O-rings) |
| Servo Components | Siemens servo warranty applies as per OEM terms (typically 24 months); Ever Power provides direct coordination with Siemens service network |
| Remote Technical Support | Video call troubleshooting within 24 hours during warranty period; parameter backup and restore via USB key provided at delivery |
| Spare Parts | Recommended spare parts kit available (piston seals, O-ring set, proximity sensor); parts shipped within 3 working days from stock |
| On-Site Commissioning | Available on request; travel and accommodation costs for engineer quoted separately by destination |
| Documentation | Operations manual, maintenance schedule, CE declaration, and electrical schematics in English (Spanish, French, Arabic on request) |
| Training | Operator and maintenance training via video call; 2-hour session covering recipe programming, daily cleaning, and preventive maintenance |
Request a Quote for the YZG Electric Piston Filling Machine
Provide your product type, casing diameter, required output (kg/h), and power supply specification. Our team typically responds with pricing and lead time within one business day.
Ever Power Meat Processing Equipment Co, Ltd — Industrial Meat Processing Machinery
