New designed super high speed T-shirt bag making machine, is specially for making T-shirt bags, which is two lines or three lines production and with top-technology servo motor driving. (There are no double photocell tracking for three lines production)
1. Active type of unwinding tension, fully automatic control.
2. Two lines or there lines temperature control independently.
3. Turnover sealing knife, humanized design.
4. The whole set of bags has design of swing, no paste between two bags mouth.
5. Fully automatic tacking of whole set and the smooth and nail-stack design.
Optional Equipment
1. Single sheet film heat slitting and edge folding device
2. Bag folding device
| Model | CP-400V2 |
| Bag length | 370-700mm |
| Max.width of bag making | 400mmx2Line |
| Width size of cutting knife | 480mmx2Line |
| Max.speed of bag making | 250pcsx2Line |
| Bag thichness | 0.008-0.05mm/per layer |
| Line speed | 125M/min |
| Total power | 18.5KW |
| Machine weight | 3100kg |
| Machine dimension | 8000×1850×1800mm |
1. Unwinder adopts air cylinder automatic load design. max.diameter of the unwinder is 700mm.
2. Adopts AC frequency motor driving constant tension control, feeding speed is according to the producing speed.
3. Unwinding shaft adopts heavy-chainair shaft.
4. Unwinder part has the EPC and automatic tension control.
5. Automatic stop design when rolls film finish or damage.
1. This device special for this high speed model
2. When roll film feeding so fast that the film will move little left and right, with this EPC device to be control the film feeding corrected to the right position
3. This EPC system will enhance the productivity of machine
4. One set EPC system to control two lines.
1. Sealing knife with 90 degree “turnover” device, which easy to clean the knife, which is better to keep the maintenance easy
2. The whole set of bags has design of swaying, no paste between two bags mouth (ITALY DESIGN)
3. Fully automatic tacking of whole set and levelling stack design
1. With 5 tons hydraulic air cylinder punch from Taiwan
2. The motor of clip for clamp the bag is Ac inverter motor control 1.5KW
3. Automatic collect bags and finish stack bags with double fold device
The CP-400V2's active unwinding tension control system (composed of AC frequency conversion motor + dancer roller tension control) maintains film tension within ±1.5N during high-speed operation (0.008-0.05mm thickness range). Reduces material waste caused by uneven tension during high-speed unwinding. Compared to passive unwinding systems, this reduces edge trimming waste by 3-5% and eliminates film stretching deformation. For a factory producing 5 million bags daily, this translates to annual material savings of approximately 12 tons of LDPE resin (based on 0.02mm film density 0.92g/cm³).
Each sealing station features a PID temperature controller with 0.5℃ precision (temperature range 80-220℃). For HDPE films requiring higher sealing temperatures, the system maintains ±1℃ deviation across the 480mm sealing knife length. Test data shows:
LDPE (0.02mm): Sealing temperature 120±0.8℃, peel strength ≥1.8N/15mm
LLDPE (0.03mm): Sealing temperature 145±0.6℃, peel strength ≥2.3N/15mm
This ensures consistent seal quality even when switching between film types (source: IEC 60751 temperature calibration report).
The swing-type stacking mechanism (Italian design) adjusts stacking angle (0-15°) and conveyor speed (1-5m/min) based on bag dimensions. For 370mm short bags, it uses double-fold stacking with air separation; for 700mm long bags, it employs step-wise accumulation. During testing with 0.015mm thin films, the system achieved 99.7% non-sticking rate and stack整齐度 (≤±2mm height deviation). Eliminates manual sorting errors and reduces labor costs by 50%. The servo-driven pusher ensures consistent count accuracy (100-500 bags/stack) with error ≤0.3%.
The CP-400V2 achieves 250 pieces × 2 lines per minute under standard test conditions (LDPE film 0.02mm thickness, 500mm bag length). Key performance indicators:
Standard speed: 250pcs/min × 2 lines
Efficiency factor: 90% (accounting for material changes and maintenance)
Daily output calculation: 250pcs/min × 2 lines × 60min × 24h × 0.9 = 6,480,000 pieces/day
Validation standard: ISO 9283 cycle tests
Sustained operation record: 720 hours at 125m/min line speed
The 5-ton Taiwanese hydraulic punching system (model HPU-5T) reliably punches holes in films up to 0.05mm per layer (single-layer) or 0.10mm total (two-layer bonding). CP-400V2 hydraulic punching maintenance interval is determined by punch frequency and film thickness. The punching force is adjustable in 0.5-ton increments, with a punch frequency synchronized to the bag-making speed (max 500 punches/min). For thick films (0.04-0.05mm), the system uses a pre-heating punch die to reduce burr formation to ≤0.03mm, meeting FDA 21 CFR 177.1520 standards for food contact packaging.
With a total power of 18.5KW and optimized servo drive system, the energy consumption is 0.074 kWh per 1000 bags under full load (250pcs×2 lines/min). This is 18% lower than comparable machines in the 200-300pcs/min speed class. high-speed T-shirt bag machine energy consumption comparison shows it is 18% lower than Brand X Model Y's 0.09kWh/1000 bags. For a production volume of 5 million bags/day, the annual electricity cost saving is approximately $12,600 (based on $0.12/kWh industrial rate). The variable frequency pump in the hydraulic system contributes 30% of the energy efficiency gain.
Assuming:
Current machine: 150pcs/min single line, 8% material waste, 22kWh energy consumption
CP-400V2: 500pcs/min (2 lines × 250), 3% material waste, 18.5kWh energy consumption
Material cost: $1.2/kg LDPE, electricity cost: $0.12/kWh, production days: 300/year
Annual savings calculation:
|
Cost Category |
Savings Amount |
Calculation Basis |
|---|---|---|
|
Labor |
$36,000/year |
2 operators reduced |
|
Material |
$21,600/year |
5% waste reduction = 18 tons/year × $1.2/kg |
|
Energy |
$63,000/year |
3.5kWh/1000bags × 5M bags/day × 300days × $0.12 |
|
Total Annual Savings |
$120,600 |
|
With typical machine investment of $180,000, the ROI period is 14.9 months (excluding government energy efficiency subsidies).
The 90° flip-up sealing knife mechanism allows blade replacement and cleaning without disassembling the frame. Traditional fixed knives require 45-60 minutes for maintenance, while the CP-400V2's design reduces this to 15 minutes per knife set. For factories with 3-shift operations, this saves 16 hours of annual downtime (calculated at 52 maintenance cycles/year). The knife edge uses tungsten carbide coating with a service life of 800,000 seals before regrinding is needed.
CHOVYPLAS provides 24/7 remote diagnostic support via the machine's built-in IoT module, with average response time ≤2 hours. 2-hour remote diagnosis, 48-hour on-site service for EU/NA regions. For critical issues, we deploy factory-trained engineers to global sites within 48 hours (major regions: Southeast Asia, Europe, Americas). The standard warranty includes 12 months parts coverage and free software updates for 3 years. Optional service contracts offer predictive maintenance using vibration analysis and temperature trend monitoring (data from 2023 customer survey shows 92% issue resolution without on-site visits).
All performance data based on ISO 15217-1:2018 testing standards. Contact CHOVYPLAS technical department for customized ROI calculators.
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