The RO Membrane Sheet Cutting & Folding Machine is an automated leaf-preparation station for household and residential spiral-wound RO membrane production. It measures and cuts RO membrane sheet and feed spacer, folds and aligns the membrane leaf, completes the configured ultrasonic positioning weld, and releases a consistent assembly for the downstream rolling process.
Designed around common 1812-3013 household element formats, the machine combines Siemens servo motion, precision stepper control, dedicated tooling, PLC recipes and touchscreen operation. It is intended for manufacturers that need repeatable leaf dimensions, lower material waste and less dependence on manual cutting and folding.
Automatic RO Membrane Sheet Cutting and Folding
Manual leaf preparation can introduce variation in cut length, membrane-to-spacer alignment and fold position. This automatic RO membrane sheet cutting machine controls those upstream steps with recipe-based motion and dedicated tooling, helping each prepared leaf enter the household RO membrane rolling machine in a repeatable condition.
The equipment prepares membrane leaves; it does not roll, trim or performance-test a finished membrane element. That clear production boundary helps line planners select the right upstream raw-material preparation and downstream element-making equipment.
From Master Roll to Ready-to-Roll Membrane Leaf
Load membrane and spacer
Install the approved RO membrane sheet and feed-spacer rolls, then select the validated size recipe.
Servo feed and cut
Siemens servo control advances the material to the programmed length before the cutting sequence.
Align and fold the leaf
Dedicated tooling positions the membrane and flow-channel mesh to reduce offset and inconsistent folds.
Weld and discharge
The configured ultrasonic positioning weld is completed and the prepared assembly exits for rolling.
Key Production Advantages
Broad household size compatibility
Recipe and tooling adjustments support common 1812, 2012, 3012 and 3013 production within the stated 250-330 mm range.
Siemens motion and control
Servo drive, precision stepper motion, PLC logic and touchscreen recipes coordinate material feeding and leaf preparation.
Integrated automatic process
Membrane cutting, feed-spacer cutting, folding, positioning welding and discharge are combined in one controlled station.
Consistent finished leaves
Combined tooling helps reduce dimensional deviation, alignment errors and unnecessary membrane or spacer waste.
Layered safety protection
Safety fencing, mechanical limits, sensors and program interlocks protect normal operation and commissioning work.
Lower repetitive labor demand
For a comparable manual workflow, automation can reduce staffing demand by up to four or five people, subject to line layout, shift organization and material handling.
RO Membrane Cutting & Folding Machine Specifications
| Technical Item | Standard / Reference Data |
|---|---|
| Product Name | RO Membrane Sheet Cutting & Folding Machine |
| Model No. | Project-specific; confirm before quotation |
| Application | Household and residential spiral-wound RO membrane leaf preparation |
| Compatible Element Formats | Common 1812-3013 formats, subject to approved tooling and material drawings |
| Adjustable Product Width | 250-330 mm |
| Incoming Membrane Roll Width | 1060-1200 mm |
| Operation | Automatic process cycle with operator attendance |
| Reference Cutting Interval | Approximately 6 seconds per leaf |
| Reference Complete Cycle | Approximately 12 seconds per leaf for the configured cutting, folding, welding and discharge process |
| Control Mode | PLC and touchscreen operation |
| Drive and Positioning | Siemens servo drive, precision stepper motor and dedicated tooling |
| Frame | European-standard heavy-duty industrial aluminum profile |
| Operating Voltage & Power | AC 220 V / no more than 3 kW |
| Air Source Pressure | 0.4-0.7 MPa, clean and dry compressed air |
| Overall Dimensions (L × W × H) | 2300 × 5500 × 1860 mm |
| Equipment Weight | 830 kg |
| Reference Packing Module Size | 2050 × 1640 × 2200 mm; final crate count and packing breakdown to be confirmed |
Values are based on the supplied standard configuration. Final tooling, material-width range, electrical standard, cycle time, machine layout, packing modules and acceptance criteria must be confirmed in the signed technical agreement. The complete 5.5 m machine is prepared for shipment in modules; the listed packing size should not be interpreted as the total single-crate dimensions.
Understanding the 6-Second and 12-Second Cycle Data
About 6 seconds per leaf
- Reference interval for the membrane-sheet cutting stage
- Useful when comparing cutting-station throughput
- Assumes a validated recipe and stable material feeding
About 12 seconds per complete cycle
- Reference for cutting, spacer preparation, folding, positioning weld and discharge
- More relevant to balanced line-capacity planning
- Actual output changes with leaf size, material behavior, tooling and operator replenishment
Production Scope and Line Integration
This machine is an upstream preparation station in a spiral-wound household RO element line. It converts approved raw materials into consistent leaf assemblies, but additional equipment is required to complete and inspect the membrane element.
Prepared by this machine
- Measured and cut RO membrane sheet
- Cut and positioned RO membrane feed spacer
- Folded and aligned membrane leaves
- Positioning welds according to the confirmed process configuration
Handled by separate equipment
- Master-roll preparation by a membrane sheet slitting and rewinding machine, when required
- Spiral winding and adhesive application
- Element trimming, component assembly and vacuum integrity screening
- Salt-rejection and permeate-flow performance testing
Where This Machine Fits Best
Household RO element factories
Standardize leaf preparation for recurring 1812-3013 residential membrane production.
OEM and ODM production
Store multiple recipes for customer-specific element formats and controlled changeovers.
Line-capacity upgrades
Replace labor-intensive cutting and folding where manual preparation limits rolling output.
New-model validation
Prepare repeatable trial leaves while validating a new size, material stack or process recipe.
R&D and pilot production
Support controlled process trials before transferring an approved recipe into regular production.
Technical training centers
Demonstrate automated leaf preparation and production-control methods for RO element manufacturing.
Control, Safety and Remote Service Support
The Siemens HMI and PLC store operating recipes and coordinate servo, stepper, pneumatic and sensor actions. Program interlocks help prevent conflicting machine movements, while safety fencing, mechanical limits and monitored devices support controlled setup and production.
Remote access is controlled, not permanently open
When the final electrical configuration, plant network and customer authorization permit, WECOME can support remote program monitoring, modification and upload for diagnostics or service. Access method, permissions and cybersecurity requirements should be agreed before commissioning.
Configuration, Acceptance and Delivery
| Project Input | What WECOME Confirms |
|---|---|
| Membrane Element Sizes | Target 1812-3013 models, leaf dimensions and recipe range |
| Raw Materials | Membrane-sheet and feed-spacer roll width, thickness, stiffness and sample-trial requirements |
| Production Target | Required leaves per shift, changeover frequency and recommended line balance |
| Tooling | Cutting, folding and welding tooling matched to approved customer drawings |
| Utilities and Safety | Electrical standard, compressed-air interface, guarding and plant acceptance requirements |
| Model No. | Assigned after the final technical configuration is approved |
| Packing and Shipment | Disassembly plan, module dimensions, crate count and shipping protection |
| Technical Support | Installation guidance, commissioning, operator training and after-sales assistance |
Frequently Asked Questions
What does an RO membrane sheet cutting and folding machine do?
It automatically measures and cuts RO membrane sheet and feed spacer, folds and aligns the membrane leaf, completes the configured positioning weld, and discharges a ready-to-roll leaf assembly for household spiral-wound RO element production.
What is the difference between the 6-second and 12-second cycle figures?
Approximately 6 seconds per leaf refers to the membrane-cutting interval. Approximately 12 seconds per leaf refers to the broader configured process that includes cutting, spacer preparation, folding, positioning welding and discharge. Actual output depends on size, material, tooling and replenishment.
Which household RO membrane sizes can the machine prepare?
The machine is designed around common 1812-3013 household and residential formats, including 1812, 2012, 3012 and 3013. Final compatibility depends on approved leaf drawings, raw-material dimensions and tooling.
What do the 250-330 mm and 1060-1200 mm ranges mean?
The 250-330 mm value is the adjustable product-width range for the prepared household membrane format. The 1060-1200 mm value is the stated incoming membrane roll-width range. Both must be checked against the customer’s actual material and leaf drawing.
Is the machine fully automatic?
The cutting, spacer preparation, folding, welding and discharge cycle is automatic after setup. An operator is still required for roll loading, material replenishment, recipe selection, quality checks and changeovers.
Can this machine reduce four or five operators?
It can reduce staffing demand by up to four or five people compared with a comparable manual cutting and folding workflow. The actual saving depends on shift structure, line layout, material logistics, inspection duties and target output.
Does the Siemens control system support remote service?
Remote monitoring, program modification and upload can be configured when customer authorization, network conditions and the final electrical design allow it. Remote access is controlled and should be covered by the commissioning and cybersecurity agreement.
What information is required for an accurate quotation?
Provide target element sizes, membrane-leaf drawings, membrane sheet and feed-spacer specifications, roll widths, required output per shift, electrical standard, compressed-air conditions and preferred line layout. Material samples are recommended for tooling and process trials.
Related Equipment and Production Resources
Confirm Your Leaf Size, Materials and Target Output
Send WECOME your membrane-leaf drawing, roll specifications and required production capacity. Our engineers will review tooling compatibility, cycle expectations and line integration before quotation.