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Fixed Platen Vertical Injection Molding Machines machine image

Fixed Platen Vertical Injection Molding Machines

Fixed platen machines keep the lower mold position stationary for projects where loading, clamping, injection, and part removal can happen in one stable work area.

They are a practical fit when mold access is simple, the workflow is stable, and extra table motion would add complexity without improving production.

Table Configuration

The most stable, straightforward clamping structure for simple mold layouts

In a fixed platen configuration, the lower platen is mounted directly to the machine frame. All operations - insert placement, mold close, injection, mold open, part removal - happen at a single, stationary position. There is no slide rail to align, no rotary mechanism to index. The result: a rigid, repeatable molding station with fewer moving parts and lower maintenance overhead.

If your inserts can be placed directly into the open mold without moving the table out of the clamping area, a fixed platen is the most direct route from raw material to finished part - available across all three Deboge vertical molding platforms.

  • Simpler mechanical structure No slide rails or rotary mechanisms to maintain or align over time
  • More rigid clamping Stationary lower platen contributes to overall frame rigidity and consistent clamp distribution
  • Available across all series From DA at 150 kN to DK at 4,000 kN - fixed platen spans the available vertical machine range
  • Straightforward operation Single-station workflow - easier to train operators, simpler to integrate with automation
DA Series fixed platen vertical injection molding machine - standard vertical clamping with vertical injection
DC Series fixed platen tie-bar-less vertical clamping machine - open front design without tie-bars
DK Series fixed platen vertical clamping horizontal injection machine - side injection for larger shot sizes
DA Series - 10 models | 150 - 3,000 kN

How It Works

Load. Clamp. Inject. Eject. One station, no table movement.

Every step of the molding cycle happens at the same fixed position. The lower platen stays bolted to the machine frame - no sliding, no rotating. This straightforward sequence repeats with minimal variation between cycles, making fixed platen machines predictable to operate and simple to maintain.

1. Load
Operator places inserts into the open mold on the stationary lower platen.
2. Clamp & Inject
The upper platen closes vertically. Material is injected into the mold cavity.
3. Eject
The mold opens. The finished part is ejected or removed by the operator.

Why the fixed station matters

  • - Thermoset & BMC molding: A rigid, vibration-resistant platform supports controlled material feeding for heat-sensitive and fiber-filled compounds. No moving table means no disturbance to material placement during the cycle.
  • - Simple insert loading: When inserts are easy to place and the mold is accessible without table movement, fixed platen avoids the cost and maintenance of slide rails or rotary mechanisms that add no value to the process.
  • - Stable automation integration: The stationary lower platen creates a fixed reference point for pick-and-place robots, conveyor alignment, and vision inspection - fewer variables to compensate for compared to a moving table.
  • - Lower service footprint: No slide rails to lubricate, no rotary joints to inspect, no positioning sensors to recalibrate. Fewer moving parts means fewer maintenance intervals over the machine's service life.

Compatible Series

Fixed platen is available across all three Deboge platforms

Every Deboge vertical molding series includes fixed platen models (labeled "Standard" in specification tables). The right series depends on your injection direction preference, tonnage requirement, and whether you benefit from a tie-bar-less structure.

DA Series

Standard Vertical Injection

Vertical clamping with vertical injection. The broadest fixed-platen range - 10 models from 150 to 3,000 kN. Suits most general vertical molding applications.

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DC Series

Tie-bar-less Vertical Clamping

C-frame structure with no tie-bars for an open working area. 4 fixed-platen models from 450 to 1,200 kN. Often reviewed for connectors, plugs, and small precision insert work.

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DK Series

Vertical Clamping | Horizontal Injection

Vertical clamp with side injection for larger shot sizes. 6 fixed-platen models from 1,200 to 4,000 kN - the highest tonnage fixed-platen option for automotive and industrial parts.

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Each series page includes complete fixed platen ("Standard") specification tables - model numbers, clamp force, screw diameter, shot weight, and machine dimensions. Full 25-parameter data sheets are available on request.

Typical Applications

When a stationary mold platform is the right fit

Fixed platen works well for applications where the mold is accessible without moving the table and production stability is the primary consideration. It is the default configuration for thermoset molding and a practical choice for straightforward insert molding and overmolding workflows.

View All Applications
Thermoset Molding Insert Molding Overmolding

Choosing Your Configuration

If the mold doesn't need to move, keep it fixed

Each table configuration solves a different production problem. The decision starts with one question: does your insert loading workflow benefit from table movement?

Table stays still

Fixed Platen

  • - Load and mold at the same position - simplest workflow
  • - Fewest moving parts to maintain
  • - Typical fit: stable production, simple insert placement, thermoset molding

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Table slides out

Slide Table ->

  • - Mold moves to the operator - hands stay out of clamping area
  • - Single for batch work, double for alternating higher output
  • - Typical fit: manual insert loading, small-to-medium batches, complex insert placement

Table rotates

Rotary Table ->

  • - Multi-station rotation - load and mold in parallel
  • - Each index delivers a finished part with no idle time
  • - Typical fit: high-volume insert molding, continuous production, parallel workflows

Related Machine Information

Slide Table Machines Single and double slide table configurations for improved operator access during insert loading. Rotary Table Machines Multi-station rotary tables for continuous production with parallel loading and molding. Machine Selection Guide Step-by-step guidance on choosing the right vertical injection molding machine.

Frequently Asked Questions About Fixed Platen Machines

What is a fixed platen configuration and when should I choose it?
A fixed platen means the lower mold platen does not move - all operations (loading, clamping, injection, ejection) happen at a single station. Choose a fixed platen when your mold layout is simple, inserts can be placed without moving the table out of the clamping area, and production stability is the priority. It is the simplest, most rigid table configuration with the fewest moving parts to maintain.
Which machine series offer fixed platen configurations?
All three vertical molding platforms offer fixed platen (called "Standard" in specification tables). DA Series provides 10 models from 150 to 3,000 kN with vertical injection. DC Series offers 4 models from 450 to 1,200 kN with a tie-bar-less open-front design. DK Series provides 6 models from 1,200 to 4,000 kN with horizontal injection for the highest shot sizes. Full specification tables for each series are available on the respective series pages.
How does fixed platen compare to slide table and rotary table?
Fixed platen keeps the lower platen stationary - simplest, most stable, lowest maintenance. Slide table moves the lower platen out of the clamping area on rails for easier operator access during insert loading. Rotary table rotates multiple stations so loading and molding happen in parallel for higher output. Start with fixed platen if your workflow does not benefit from table movement; choose slide or rotary when insert loading access or parallel operation improves your cycle efficiency.
Can a fixed platen machine be converted to slide table or rotary later?
Converting a fixed platen machine to a slide or rotary table configuration after purchase involves significant structural changes - new platen assemblies, rails or rotary mechanisms, and control system modifications. It is generally more practical to select the correct table configuration upfront. Discuss whether a fixed platen or moving table configuration best fits your current and planned production needs before finalizing the machine.
What are the maintenance advantages of a fixed platen configuration?
Fixed platen machines have fewer moving mechanical components compared to slide and rotary table configurations - no slide rails to align and lubricate, no rotary mechanism to service. This simpler mechanical structure typically means lower routine maintenance requirements and fewer wear points. For straightforward production environments, this can reduce downtime and maintenance cost over the machine's service life.

Not sure if fixed platen fits your application?

Send your product details, mold layout, and insert loading process so the engineering team can help evaluate whether a fixed platen or moving table configuration better suits your production.

Ask If Fixed Platen Fits Your Application